WO2024053574A1 - 新規なオリゴ糖、該オリゴ糖の製造中間体、及びそれらの製造方法 - Google Patents
新規なオリゴ糖、該オリゴ糖の製造中間体、及びそれらの製造方法 Download PDFInfo
- Publication number
- WO2024053574A1 WO2024053574A1 PCT/JP2023/032064 JP2023032064W WO2024053574A1 WO 2024053574 A1 WO2024053574 A1 WO 2024053574A1 JP 2023032064 W JP2023032064 W JP 2023032064W WO 2024053574 A1 WO2024053574 A1 WO 2024053574A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compound represented
- group
- formula
- phenyl group
- following formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/54—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
- A61K47/549—Sugars, nucleosides, nucleotides or nucleic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/68—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
- A61K47/6889—Conjugates wherein the antibody being the modifying agent and wherein the linker, binder or spacer confers particular properties to the conjugates, e.g. peptidic enzyme-labile linkers or acid-labile linkers, providing for an acid-labile immuno conjugate wherein the drug may be released from its antibody conjugated part in an acidic, e.g. tumoural or environment
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/20—Carbocyclic rings
- C07H15/203—Monocyclic carbocyclic rings other than cyclohexane rings; Bicyclic carbocyclic ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H3/00—Compounds containing only hydrogen atoms and saccharide radicals having only carbon, hydrogen, and oxygen atoms
- C07H3/06—Oligosaccharides, i.e. having three to five saccharide radicals attached to each other by glycosidic linkages
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the present invention relates to a novel oligosaccharide that is a bibranched glycan having an ⁇ 2,6-sialic acid structure at the non-reducing end, a method for producing the oligosaccharide, an intermediate thereof, and a method for producing the intermediate.
- Non-Patent Document 1 Non-Patent Document 1
- Non-Patent Document 2 N-linked sugar chains can be obtained from chicken egg yolk by combining an enzymatic method and a chemical method.
- these methods can synthesize the desired sugar chain in fewer steps than pure chemical synthesis, they require the procurement of a large amount of egg yolk, and the subsequent isolation and purification from the egg yolk, as well as the water-solubility after chemical conversion. Purification of unprotected sugar chains also often requires special techniques and purification equipment (Patent Documents 1 to 4).
- Non-Patent Document 9 the reaction yield tends to decrease as the number of benzyl groups in the substrate increases (Non-Patent Document 9), and it has been desired to develop a milder and more efficient method that can be applied to complex substrates.
- improved conditions using ⁇ -pinene as an additive have been reported (Non-Patent Document 10), but even with this method, the yield is low for complex substrates having multiple benzyl groups. remains at a moderate level (Non-Patent Document 11). From the above background, it is desired to develop a de-2-naphthylmethylation reaction that can deprotect the protecting group of the 2-naphthylmethyl group and obtain the deprotected product in high yield under milder conditions. There is.
- liquid phase synthesis and solid phase synthesis are known as methods for chemically synthesizing oligosaccharide chains.
- the liquid phase synthesis method allows the use of ordinary organic synthesis techniques, making it easy to track the reaction and scale up the process, it requires post-treatment and purification for each step, which requires time and effort.
- solid-phase synthesis is advantageous in that automated synthesis is possible and rapid production is possible, but there are limits to scale-up due to equipment constraints, and low reactivity makes it difficult to perform sugar elongation reactions. It is necessary to use an excessive amount of the sugar donor, which makes it unsuitable for industrial mass synthesis, and it also has the disadvantage that it is difficult to check the progress of the reaction at intermediate stages (Patent Document 5).
- Non-Patent Documents 12 to 16 are examples of tags that cause precipitation, distribution, adsorption, etc. specifically in certain environments. These methods combine the advantages of liquid-phase and solid-phase synthesis methods; in other words, the reaction can be carried out in a homogeneous system, making analysis easy, and the characteristics of tags are used to reduce the risk of interaction with reagent debris. Separation is possible.
- Non-Patent Document 16 a method in which untagged compounds are separated by using a branched long-chain alkane as a hydrophobic tag and adsorbing the reaction solution with octadecyl-modified silica gel.
- the use of a tag is essential, and a desorption step is necessary, and as the substrate region becomes larger than the tag as oligomerization progresses, the physical properties of the substrate gradually become more dominant. This had the disadvantage that the function of the tag was weakened. Therefore, in the method for producing oligosaccharide chains, there is a need for a method that can purify oligosaccharides more efficiently.
- the Troc group requires deprotection reaction conditions using zinc/AcOH or a long reaction time using an excess amount of lithium hydroxide, and in complex sugar chains, decomposition of the substrate occurs under the deprotection reaction conditions.
- deprotecting phthaloyl groups there is a problem in that the amidation of sialic acid ester moieties proceeds as a side reaction due to the use of an excessive amount of ethylenediamine.To avoid this, it is necessary to selectively remove ester moieties in advance. Two steps of hydrolysis followed by deprotection are required.
- sulfonyl groups are deprotected using sodium metal under reaction conditions that are difficult to scale up.
- An object of the present invention is to provide a novel oligosaccharide that is a bibranched glycan having an ⁇ 2,6-sialic acid structure at the non-reducing end, a method for producing the oligosaccharide, an intermediate thereof, and a method for producing the intermediate. It is to be.
- the present inventors have made intensive studies and have developed a novel oligonucleotide represented by the following formula A-22, which is a biantennary glycan having an ⁇ 2,6-sialic acid structure at the non-reducing end.
- the present invention was completed by discovering a novel method for efficiently producing sugars and oligosaccharides, intermediates thereof, and methods for producing intermediates thereof.
- the present invention relates to the following, but is not limited thereto.
- the following formula A-22 An oligosaccharide represented by ), the method comprising: (Step I-1) Formula A-3: The compound represented by the following formula A-5: By forming an ⁇ -1,3-glycosidic bond and an ⁇ -1,6-glycosidic bond with the compound represented by, the following formula A-6: The following formula A-8, including the step of producing a compound represented by: A step of producing a compound represented by (Step I-2) The compound represented by the formula A-8 is converted into the compound represented by the following formula A-9: A compound represented by (in the formula, it is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) and ⁇ -1 ,4-glycosidic bond, the following formula A-10: A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phen
- formula A-18 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation): A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation); (Step I-5) The compound represented by the above formula A-20 is converted into the compound represented by the following formula A-21: A step of producing an oligosaccharide represented by the formula A-22 by reacting with a compound represented
- step I-2 the compound represented by the formula A-10 is reacted with a strong base in the presence of an alkyl ester of perfluorocarboxylic acid to produce the compound represented by the formula A-11.
- the alkyl ester of perfluorocarboxylic acid is methyl trifluoroacetate, ethyl trifluoroacetate, propyl trifluoroacetate, isopropyl trifluoroacetate, butyl trifluoroacetate, methyl pentafluoropropionate, ethyl pentafluoropropionate, pentafluoropropion Acid propyl, isopropyl pentafluoropropionate, butyl pentafluoropropionate, methyl heptafluorobutyrate, ethyl heptafluorobutyrate, propyl heptafluorobutyrate, isopropyl heptafluorobutyrate, butyl heptafluorobutyrate, methyl nonafluorovalerate, nonafluorovalerate Ethyl, propyl trifluoroacetate, isopropyl trifluoroacetate
- the strong base is sodium, lithium, and potassium salts of metal amides; sodium, lithium, potassium, cesium, and barium salts of C 1 -C 20 alkoxides; sodium hydride, potassium hydride, and hydrogen.
- DBU diazabicycloundecene
- DBN diazabicyclononene
- TMG 1,1,3,3-tetramethylguanidine
- the step of producing the compound represented by the formula A-11 by reacting the compound represented by the formula A-10 with a strong base in the presence of an alkyl ester of perfluorocarboxylic acid comprises C 1 -C 10 alcohol solvent alone, or in combination with a C 1 to C 10 alcohol solvent and an amide solvent, an ether solvent, an ester solvent, an aromatic solvent, a halogen solvent, a hydrocarbon solvent, or a nitrile solvent.
- step I-3 the amino group in the compound represented by formula A-14 is protected with an aryloxycarbonyl (COOAr) group to produce a compound represented by formula A-15, [1] The method according to any one of ⁇ [10].
- step I-3 the step of producing the compound represented by the formula A-15 from the compound represented by the formula A-14 is performed using sodium hydrogen carbonate, potassium hydrogen carbonate, disodium hydrogen phosphate, or hydrogen phosphate.
- the fluorous alcohol is hexafluoro-2-propanol (HFIP), 2,2,2-trifluoroethanol (TFE), 2,2,3,3,4,4,5,5-octafluoro-1-pene.
- HFIP hexafluoro-2-propanol
- TFE 2,2,2-trifluoroethanol
- the method according to [15], wherein the method is selected from the group consisting of tanol, nonafluoro-tert-butyl alcohol, and combinations thereof.
- the method according to [15] or [16] wherein the reaction is carried out at -35°C to 70°C.
- the method according to [15] or [16] wherein the reaction is carried out at -30°C to -10°C.
- a method for producing the following formula A-10: A compound represented by (R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is A method comprising reacting with a strong base in the presence of an alkyl ester of a fluorocarboxylic acid.
- the alkyl ester of perfluorocarboxylic acid is methyl trifluoroacetate, ethyl trifluoroacetate, propyl trifluoroacetate, isopropyl trifluoroacetate, butyl trifluoroacetate, methyl pentafluoropropionate, ethyl pentafluoropropionate, pentafluoropropion Acid propyl, isopropyl pentafluoropropionate, butyl pentafluoropropionate, methyl heptafluorobutyrate, ethyl heptafluorobutyrate, propyl heptafluorobutyrate, isopropyl heptafluorobutyrate, butyl heptafluorobutyrate, methyl nonafluorovalerate, nonafluorovalerate Ethyl, propyl nonafluorovalerate, isopropyl nonafluorova
- the strong base is sodium, lithium, and potassium salts of metal amides; sodium, lithium, potassium, cesium, and barium salts of C 1 -C 20 alkoxides; sodium hydride, potassium hydride, and hydrogen.
- DBU diazabicycloundecene
- DBN diazabicyclononene
- TMG 1,1,3,3-tetramethylguanidine
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group is substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6 is a hydrogen atom.
- R 5 and R 6 form a phthalimide group together with the nitrogen atom to which they are bonded
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6 is a hydrogen atom, or R 5 and R 6 together with the nitrogen atom to which they are attached form a phthalimide group
- a method comprising the step of producing a compound represented by formula A-17 by forming a ⁇ -1,4-glycosidic bond with a compound represented by formula A-17.
- R 5 is an aryloxycarbonyl (COOAr) group.
- the following formula A-18 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation), the method of producing a compound having the following formula A-17: A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) , R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc)
- Formula A-14-FMA A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) .
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6 is a hydrogen atom
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6 is a hydrogen atom
- the following formula A-18-FF A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) Or its salt.
- the following formula A-19-FF A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) Or its salt.
- A-20-FF A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) Or its salt.
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- A'-20-FF A compound represented by or a salt thereof.
- a method for producing a sugar chain remodeling antibody or its Fc region-containing molecule comprising the method according to any one of [1] to [14] to obtain a compound represented by formula A-22, and The obtained compound represented by formula A-22 is reacted with an acceptor molecule, which is an antibody having a core GlcNAc to which fucose may be added as an N297-linked sugar chain or a molecule containing its Fc region, to form the sugar chain.
- a method comprising remodeling an antibody or Fc region-containing molecule thereof.
- the production method according to [41] further comprising a step of reacting the azide group (N 3 -) with a molecule having an alkyne structure.
- the molecule having an alkyne structure is selected from chemotherapeutic agents, molecular target drugs, immune stimulants, toxins, antibacterial agents, antiviral agents, diagnostic agents, proteins, peptides, amino acids, nucleic acids, antigens, vitamins, and hormones.
- a method for producing an antibody-drug conjugate, comprising the method according to any one of [41] to [43].
- step I-1 after stopping the reaction between the compound represented by the formula A-3 and the compound represented by the formula A-5, the generated compound represented by the formula A-6 and impurities are A hydrophobic carrier and water are added to the water-soluble organic solvent containing the compound, the compound represented by the formula A-6 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of the above formula A-6 and the above water, and then the compound represented by the above formula A-6 is eluted from the above hydrophobic carrier using an organic solvent.
- step I-2 after stopping the reaction between the compound represented by the formula A-8 and the compound represented by the formula A-9, the generated compound represented by the formula A-10 and impurities are removed.
- a hydrophobic carrier and water are added to the water-soluble organic solvent containing the compound, the compound represented by the formula A-10 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of the above formula A-10 and the above water, and then the compound represented by the above formula A-10 is eluted from the above hydrophobic carrier using an organic solvent.
- the method according to any one of [1] to [14] and [45], which comprises purifying the compound represented by A-10.
- step I-3 after stopping the reaction between the compound represented by the formula A-11 and the compound represented by the formula A-12, the generated compound represented by the formula A-13 and impurities are removed.
- a hydrophobic carrier and water are added to the water-soluble organic solvent containing the compound, the compound represented by the formula A-13 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of the above formula A-13 and the above water, and then the compound represented by the above formula A-13 is eluted from the above hydrophobic carrier using an organic solvent.
- the method according to any one of [1] to [14], [45], and [46], which comprises purifying the compound represented by A-13.
- step I-3 a hydrophobic carrier and water are added to the produced water-soluble organic solvent containing the compound represented by the formula A-14 and impurities, and the formula A-14 is added to the hydrophobic carrier.
- the compound represented by is adsorbed, and the impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and the water.
- [1] to [14] and [45] to [47] comprising purifying the compound represented by the formula A-14 by eluting the compound represented by the formula A-14 from the hydrophobic carrier. ]
- step I-4 after stopping the reaction between the compound represented by the formula A-15 and the compound represented by the formula A-16, the generated compound represented by the formula A-17 and impurities are removed.
- a hydrophobic carrier and water are added to the water-soluble organic solvent containing the compound, the compound represented by the formula A-17 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of the above formula A-17 and the above water, and then the compound represented by the above formula A-17 is eluted from the above hydrophobic carrier using an organic solvent.
- the method according to any one of [1] to [14] and [45] to [48], which comprises purifying the compound represented by A-17.
- the resin for filling reverse phase partition chromatography is poly(styrene/divinylbenzene) polymer gel resin, polystyrene-divinylbenzene resin, polyhydroxy methacrylate resin, styrene vinylbenzene copolymer resin, polyvinyl alcohol resin, polystyrene resin, polymethacrylate.
- the method according to [55] which is selected from the group consisting of resin, chemically bonded silica gel resin, and combinations thereof.
- the chemically bonded silica gel resin includes (1) a resin obtained by reacting silica gel with a silane coupling agent, (2) silica gel containing dimethyloctadecyl, octadecyl, trimethyloctadecyl, dimethyloctyl, octyl, butyl, ethyl, and methyl.
- the water-soluble organic solvent may be a water-soluble alcohol solvent, a water-soluble nitrile solvent, a water-soluble ether solvent, a water-soluble ketone solvent, a water-soluble amide solvent, a water-soluble sulfoxide solvent, or the aforementioned water-soluble organic solvent.
- the organic solvent used in the step of eluting the target product from the hydrophobic carrier may be a nitrile solvent, an ether solvent, an ester solvent, a ketone solvent, a halogen solvent, an aromatic solvent, or any of the above solvents.
- a method comprising purifying the compound represented by the formula A-6 by eluting the compound represented by the formula A-6 from the hydrophobic carrier.
- a purification method comprising: adding a hydrophobic carrier and water to a water-soluble organic solvent containing the compound represented by the formula A-10 and impurities; The impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-10 by eluting the compound represented by formula A-10 from the hydrophobic carrier.
- Formula A-13 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups)
- a purification method comprising: adding a hydrophobic carrier and water to a water-soluble organic solvent containing the compound represented by the formula A-13 and impurities; The impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-13 by eluting the compound represented by formula A-13 from the hydrophobic carrier.
- a purification method comprising: adding a hydrophobic carrier and water to a water-soluble organic solvent containing the compound represented by the formula A-14 and impurities; The impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-14 by eluting the compound represented by formula A-14 from the hydrophobic carrier.
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6 is a hydrogen atom, or R 5 and R 6 form a phthalimide group together with the nitrogen atom to which they are bonded.
- the compound represented by the formula A-17 is adsorbed into the hydrophobic carrier by adding a hydrophobic carrier and water, and then filtered and the hydrophobic carrier is treated with a mixed solution of the water-soluble organic solvent and the water.
- the impurities are removed by washing, and the compound represented by the formula A-17 is then eluted from the hydrophobic carrier using an organic solvent.
- a method comprising refining. [67] The method according to [62], wherein the impurities include a sugar compound other than the compound represented by the formula A-6 and/or a compound derived from a reaction reagent for obtaining the compound to be purified.
- the impurities include a sugar compound other than the compound represented by the formula A-17 and/or a compound derived from a reaction reagent for obtaining the compound to be purified.
- the hydrophobic carrier is a resin for reverse phase partition chromatography packing.
- the resin for filling reverse phase partition chromatography is poly(styrene/divinylbenzene) polymer gel resin, polystyrene-divinylbenzene resin, polyhydroxy methacrylate resin, styrene vinylbenzene copolymer resin, polyvinyl alcohol resin, polystyrene resin, polymethacrylate.
- the chemically bonded silica gel resin includes (1) a resin obtained by reacting silica gel with a silane coupling agent, (2) silica gel containing dimethyloctadecyl, octadecyl, trimethyloctadecyl, dimethyloctyl, octyl, butyl, ethyl, and methyl.
- the water-soluble organic solvent is a water-soluble alcohol solvent, a water-soluble nitrile solvent, a water-soluble ether solvent, a water-soluble ketone solvent, a water-soluble amide solvent, a water-soluble sulfoxide solvent, or the aforementioned water-soluble organic solvent.
- the organic solvent used in the step of eluting the target product from the hydrophobic carrier may be a nitrile solvent, an ether solvent, an ester solvent, a ketone solvent, a halogen solvent, an aromatic solvent, or any of the above solvents.
- the present invention relates to, but is not limited to: [1] The following formula A'-22: A method for producing an oligosaccharide represented by (Step I-1)
- Formula A-3 The compound represented by the following formula A-5: By forming an ⁇ -1,3-glycosidic bond and an ⁇ -1,6-glycosidic bond with the compound represented by, the following formula A-6:
- the following formula A-8 including the step of producing a compound represented by: A step of producing a compound represented by (Step I-2)
- the compound represented by the above formula A-8 is converted into the compound represented by the following formula A'-9:
- the following formula A'-11 including the step of producing a compound represented by: A step of producing a compound represented by (Step I-3)
- the compound represented by the above formula A'-11 is converted to the following formula A-12: By forming a ⁇
- R 5 and R 6 together with the nitrogen atom to which they are attached form a phthalimide group By removing the group, a compound of the above formula A'-15 is produced (wherein R 5 and R 6 together with the nitrogen atom to which they are attached form a phthalimide group) process, (Step I-4)
- the compound represented by the above formula A'-15 is converted into the following formula A-16: By forming a ⁇ -1,4-glycosidic bond with the compound represented by, the following formula A'-17:
- formula A'-18 By removing the protecting group and the acyl protecting group of the hydroxyl group, formula A'-18: wherein M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation: A step of producing a compound represented by (Step I-5) The compound represented by the above formula A'-20 is converted into the compound represented by the following formula A-21: A step of producing an oligosaccharide represented by the formula A'-22 by reacting with a compound represented by including methods.
- the generated compound represented by the formula A-6 and impurities are A hydrophobic carrier and water are added to the water-soluble organic solvent containing the compound, the compound represented by the formula A-6 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of the above formula A-6 and the above water, and then the compound represented by the above formula A-6 is eluted from the above hydrophobic carrier using an organic solvent.
- step I-2 after stopping the reaction between the compound represented by the formula A-8 and the compound represented by the formula A'-9, the generated compound represented by the formula A'-10 and contaminants A hydrophobic carrier and water are added to a water-soluble organic solvent containing a compound, the compound represented by the formula A'-10 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of a hydrophobic organic solvent and the water, and then the compound represented by the formula A'-10 is eluted from the hydrophobic carrier using an organic solvent.
- step I-3 after stopping the reaction between the compound represented by the formula A'-11 and the compound represented by the formula A-12, the generated compound represented by the formula A'-13 and contaminants A hydrophobic carrier and water are added to a water-soluble organic solvent containing a compound, the compound represented by the formula A'-13 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of a hydrophobic organic solvent and the water, and then the compound represented by the formula A'-13 is eluted from the hydrophobic carrier using an organic solvent.
- step I-3 a hydrophobic carrier and water are added to the produced water-soluble organic solvent containing the compound represented by the formula A'-14 and impurities, and the formula A' is added to the hydrophobic carrier. -14 is adsorbed, the impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and the water, and then the organic solvent is removed. Any one of [1] to [8], comprising purifying the compound represented by the formula A'-14 by eluting the compound represented by the formula A'-14 from the hydrophobic carrier using The method described in paragraph 1.
- step I-4 after stopping the reaction between the compound represented by the formula A'-15 and the compound represented by the formula A-16, the generated compound represented by the formula A'-17 and contaminants A hydrophobic carrier and water are added to a water-soluble organic solvent containing a compound, the compound represented by the formula A'-17 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of a hydrophobic organic solvent and the water, and then the compound represented by the formula A'-17 is eluted from the hydrophobic carrier using an organic solvent.
- the resin for filling reverse phase partition chromatography is poly(styrene/divinylbenzene) polymer gel resin, polystyrene-divinylbenzene resin, polyhydroxy methacrylate resin, styrene vinylbenzene copolymer resin, polyvinyl alcohol resin, polystyrene resin, polymethacrylate.
- the chemically bonded silica gel resin includes (1) a resin obtained by reacting silica gel with a silane coupling agent, (2) silica gel containing dimethyloctadecyl, octadecyl, trimethyloctadecyl, dimethyloctyl, octyl, butyl, ethyl, and methyl.
- the water-soluble organic solvent may be a water-soluble alcohol solvent, a water-soluble nitrile solvent, a water-soluble ether solvent, a water-soluble ketone solvent, a water-soluble amide solvent, a water-soluble sulfoxide solvent, or the aforementioned water-soluble organic solvent.
- the organic solvent used in the step of eluting the target product from the hydrophobic carrier may be a nitrile solvent, an ether solvent, an ester solvent, a ketone solvent, a halogen solvent, an aromatic solvent, or any of the above solvents.
- step I-2 the compound represented by the formula A'-10 is reacted with a strong base in the presence of an alkyl ester of perfluorocarboxylic acid, thereby producing the compound represented by the formula A'-11.
- the alkyl ester of perfluorocarboxylic acid is methyl trifluoroacetate, ethyl trifluoroacetate, propyl trifluoroacetate, isopropyl trifluoroacetate, butyl trifluoroacetate, methyl pentafluoropropionate, ethyl pentafluoropropionate, pentafluoropropion Acid propyl, isopropyl pentafluoropropionate, butyl pentafluoropropionate, methyl heptafluorobutyrate, ethyl heptafluorobutyrate, propyl heptafluorobutyrate, isopropyl heptafluorobutyrate, butyl heptafluorobutyrate, methyl nonafluorovalerate, nonafluorovalerate Ethyl, propyl nonafluorovalerate, isopropyl nonafluorova
- the strong base is sodium, lithium, and potassium salts of metal amides; sodium, lithium, potassium, cesium, and barium salts of C 1 -C 20 alkoxides; sodium hydride, potassium hydride, and hydrogen.
- the step of producing the compound represented by the formula A'-11 by reacting the compound represented by the formula A'-10 with a strong base in the presence of an alkyl ester of perfluorocarboxylic acid comprises C1 to It is carried out in a C10 alcohol solvent alone, or a mixture of a C1 to C10 alcohol solvent with an amide solvent, an ether solvent, an ester solvent, an aromatic solvent, a halogen solvent, a hydrocarbon solvent, or a nitrile solvent.
- step I-3 the amino group in the compound represented by formula A'-14 is protected with an aryloxycarbonyl (COOAr) group to produce a compound represented by formula A'-15. 1] to [27].
- step I-3 the step of producing the compound represented by the formula A'-15 from the compound represented by the formula A'-14 is performed using sodium hydrogen carbonate, potassium hydrogen carbonate, disodium hydrogen phosphate, or phosphorus.
- Formula A-5 A method for producing a compound represented by the following formula: A-4: The compound represented by formula A-4 is reacted with 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) in a mixed solvent of fluorous alcohol and water to obtain the compound represented by formula A-4. A method comprising producing a compound represented by the formula A-5 by eliminating the 2-naphthylmethyl group.
- the fluorous alcohol is hexafluoro-2-propanol (HFIP), 2,2,2-trifluoroethanol (TFE), 2,2,3,3,4,4,5,5-octafluoro-1-pene.
- a method comprising purifying the compound represented by the formula A-6 by eluting the compound represented by the formula A-6 from the hydrophobic carrier.
- the following formula A'-10 A method for purifying a compound represented by the formula A'-10, wherein a hydrophobic carrier and water are added to a water-soluble organic solvent containing the compound represented by the formula A'-10 and impurities; The compound represented by A'-10 is adsorbed, and the impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by the formula A'-10 by eluting the compound represented by the formula A'-10 from the hydrophobic carrier using a solvent.
- the following formula A'-13 A method for purifying a compound represented by the formula A'-13, which comprises adding a hydrophobic carrier and water to a water-soluble organic solvent containing the compound represented by the formula A'-13 and impurities, and purifying the compound represented by the formula A'-13 into the hydrophobic carrier.
- the compound represented by A'-13 is adsorbed, and the impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by the formula A'-13 by eluting the compound represented by the formula A'-13 from the hydrophobic carrier using a solvent.
- the following formula A'-14 A method for purifying a compound represented by the formula A'-14, which comprises adding a hydrophobic carrier and water to a water-soluble organic solvent containing the compound represented by the formula A'-14 and impurities, and purifying the compound represented by the formula A'-14 into the hydrophobic carrier.
- the compound represented by A'-14 is adsorbed, and the impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by the formula A'-14 by eluting the compound represented by the formula A'-14 from the hydrophobic carrier using a solvent.
- the following formula A'-17 A compound represented by (wherein R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group, and R 6 is hydrogen or R 5 and R 6 form a phthalimide group together with the nitrogen atom to which they are bonded, the method for purifying a compound represented by the above formula A'-17 and impurities.
- a hydrophobic carrier and water are added to a water-soluble organic solvent containing the above, and the compound represented by the formula A'-17 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- the impurities are removed by washing with a mixed solution of an organic solvent and the water, and then the compound represented by the formula A'-17 is eluted from the hydrophobic carrier using an organic solvent.
- a method comprising purifying the compound represented by the formula A'-17.
- the impurities include a sugar compound other than the compound represented by the formula A'-17, and/or a compound derived from a reaction reagent for obtaining the compound to be purified.
- the hydrophobic carrier is a resin for reverse phase partition chromatography packing.
- the resin for filling reverse phase partition chromatography is poly(styrene/divinylbenzene) polymer gel resin, polystyrene-divinylbenzene resin, polyhydroxy methacrylate resin, styrene vinylbenzene copolymer resin, polyvinyl alcohol resin, polystyrene resin, polymethacrylate.
- the chemically bonded silica gel resin includes (1) a resin obtained by reacting silica gel with a silane coupling agent, (2) silica gel containing dimethyloctadecyl, octadecyl, trimethyloctadecyl, dimethyloctyl, octyl, butyl, ethyl, and methyl.
- the water-soluble organic solvent is a water-soluble alcohol solvent, a water-soluble nitrile solvent, a water-soluble ether solvent, a water-soluble ketone solvent, a water-soluble amide solvent, a water-soluble sulfoxide solvent, or the aforementioned water-soluble organic solvent.
- the method according to [48], wherein the water-soluble nitrile solvent is acetonitrile.
- the organic solvent used in the step of eluting the target product from the hydrophobic carrier may be a nitrile solvent, an ether solvent, an ester solvent, a ketone solvent, a halogen solvent, an aromatic solvent, or any of the above solvents.
- the alkyl ester of perfluorocarboxylic acid is methyl trifluoroacetate, ethyl trifluoroacetate, propyl trifluoroacetate, isopropyl trifluoroacetate, butyl trifluoroacetate, methyl pentafluoropropionate, ethyl pentafluoropropionate, pentafluoropropion Acid propyl, isopropyl pentafluoropropionate, butyl pentafluoropropionate, methyl heptafluorobutyrate, ethyl heptafluorobutyrate, propyl heptafluorobutyrate, isopropyl heptafluorobutyrate, butyl heptafluorobutyrate, methyl nonafluorovalerate, nonafluorovalerate Ethyl, propyl nonafluorovalerate, isopropyl nonafluorova
- the strong base includes sodium, lithium, and potassium salts of metal amides; sodium, lithium, potassium, cesium, and barium salts of C 1 -C 20 alkoxides; sodium hydride, potassium hydride, and hydrogen.
- DBU diazabicycloundecene
- DBN diazabicyclononene
- TMG 1,1,3,3-tetramethylguanidine
- the present invention provides an oligosaccharide represented by the above formula A-22 and a novel method for producing the same, as well as a production intermediate for the oligosaccharide and a method for producing the same.
- the method for producing the compounds represented by formulas A-2 to A-14 is briefly shown below.
- the method for producing the compounds represented by formulas A-15 to A-22 is briefly shown below.
- oligosaccharide represented by formula A-22 a novel oligosaccharide represented by formula A-22 and a novel method for producing the same are provided.
- the oligosaccharide represented by formula A-22 means the following oligosaccharide.
- the novel synthesis scheme for the oligosaccharide represented by the above formula A-22 includes the following steps I-1 to I-5.
- R 1 in oligosaccharides and compounds is a C 1 -C 6 alkyl group or a phenyl group, where the phenyl group has 1 to 3 (i.e., 1, 2 , or 3) C 1 -C 6 alkoxy groups.
- the phenyl group may be unsubstituted.
- C x -C y alkyl group refers to a straight, branched, or cyclic saturated aliphatic hydrocarbon group containing x to y carbons.
- straight chain saturated aliphatic hydrocarbon groups include methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, etc.
- hydrocarbon groups include isopropyl, isobutyl, tert-butyl, sec-butyl, isopentyl, tert-pentyl, sec-pentyl, isohexyl, tert-hexyl, sec-hexyl, and the like.
- alkyl group also includes a cyclic saturated aliphatic hydrocarbon group, that is, “cycloalkyl”, and the “cycloalkyl” may include a fused or bridged ring system. good.
- cycloalkyl include, for example, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and the like.
- alkoxy group refers to an alkyl group attached through an oxygen (ie, alkyl-O-), where the alkyl group is as defined above.
- alkoxy groups include, for example, methoxy, ethoxy, propoxy, tert-butoxy, and the like.
- the substituent "R 1 " in the oligosaccharide and the compound is preferably n-propyl, n-butyl, n-pentyl, n-hexyl, isopropyl, isobutyl, tert-butyl, isopentyl, tert- -pentyl, sec-pentyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, 4-methoxyphenyl, 3-methoxyphenyl, 2-methoxyphenyl, 3,4-dimethoxyphenyl, 2,4-dimethoxyphenyl, 2,3-dimethoxy Phenyl, 3,4,5-trimethoxyphenyl, or phenyl, more preferably isopropyl, isobutyl, tert-butyl, 4-methoxyphenyl, 3-methoxyphenyl, or 2-methoxyphenyl,
- the present invention includes, in one aspect, "salts" of oligosaccharides represented by formula A-22 and novel intermediates thereof (for example, compounds represented by formulas A-2 to A-20). ” is also included.
- a salt can be formed at the carboxyl group, amino group, etc. in the oligosaccharide represented by formula A-22 and the compound used for producing the oligosaccharide.
- Salts that may be formed include, for example, inorganic acids such as hydrochloric, sulfuric, hydrobromic, phosphoric; or acetic, propionic, trimethylacetic, tert-butylacetic, hexanoic, succinic, malic, fumaric acids; acid, and acid addition salts formed with organic acids such as tartaric acid, citric acid, benzoic acid, methanesulfonic acid, and ethanesulfonic acid. Salts can also be formed when the acidic protons present can react with inorganic or organic bases, such as sodium hydroxide, potassium hydroxide, sodium carbonate, calcium hydroxide, lithium hydroxide, etc.
- Organic bases include, but are not limited to, ethanolamine, diethanolamine, triethanolamine, triethylamine, and the like.
- the "salt" is preferably a pharmaceutically acceptable salt.
- Step I-1 is based on formula A-3: The compound represented by the following formula A-5: By forming an ⁇ -1,3-glycosidic bond and an ⁇ -1,6-glycosidic bond with the compound represented by, the following formula A-6: The following formula A-8, including the step of producing a compound represented by: This is a process of producing a compound represented by The step I-1 includes the following steps I-1-1 to I-1-3.
- step I-1-1 the compound represented by the formula A-3 and the compound represented by the formula A-5 are formed by forming an ⁇ -1,3-glycosidic bond and an ⁇ -1,6-glycosidic bond.
- This is a process for producing the compound represented by -6.
- This step can be carried out by using or applying a known method, but preferably, for example, by the method shown in Example 32 or 55.
- Molecular sieve 4A powder and trimethylsilyl trifluoromethanesulfonate are sequentially added to the compound in an organic solvent (toluene, etc.) to form a compound represented by the above formula A-5, an ⁇ -1,3-glycosidic bond, and an ⁇ -1,3-glycosidic bond.
- TMSOTf trimethylsilyl trifluoromethanesulfonate
- the compound represented by formula A-3 can be produced by the following steps, but the production method is not limited to this method.
- the following formula A-1 The compound represented by (3,4,6-tri-O-benzyl-1,2-O-(1-methoxyethylidene)- ⁇ -D-mannopyranose) is mixed with water and p-TsOH .
- the following formula A-2 produces the compound shown in This step can be suitably performed, for example, by the method shown in Example 29 or 52.
- a compound represented by formula A-3 is produced by adding, for example, trichloroacetonitrile and diazabicycloundecene (DBU) to the compound represented by formula A-2.
- DBU diazabicycloundecene
- the compound represented by the formula A-5 is obtained by first producing a compound represented by the following formula A-4, and then producing a compound represented by the formula A-5 from the compound.
- the compound represented by formula A-4 is produced by the following steps X-1 to X-14, or the following steps X-1 to X-8 + X-15 to X-16. . Details of each step are illustrated below, but each step can also be carried out using a conventional method for monosaccharide or oligosaccharide production, or by applying such a conventional method.
- Step X-1 is the following formula C-1:
- the compound represented by formula C-1 which is the starting material for this step, can be produced by a known method, or a commercially available product can be used.
- a commercially available compound represented by formula C-1 includes, for example, 1,2:5,6-di-O-isopropylidene- ⁇ -D-glucofuranose manufactured by Sigma-Aldrich. This step can be carried out by using or applying a known method, but preferably by the method shown in Example 1, for example.
- step X-2 the compound represented by formula C-2 is converted into the following formula C-3 by acid hydrolysis of isopropylidene at two locations and pyranose ring formation:
- This is a process for producing a compound represented by This step can be performed by using or applying a known method, but preferably can be performed by the method shown in Example 2, for example.
- step X-3 the hydroxyl group on the compound represented by formula C-3 is protected with an acetyl group to form the following formula C-4:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 3, for example.
- step X-4 only the acetyl group in the acetyloxy group bonded to the 1st carbon of the compound represented by formula C-4 is selectively removed, thereby producing the following formula C-5:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 3, for example.
- the step of producing the compound represented by formula C-5 from the compound represented by formula C-3 above may be carried out in one pot, for example, as shown in Example 3.
- step X-5 the compound represented by formula C-5 is reacted with trichloroacetonitrile to produce the following formula C-6:
- This is a process for producing a compound represented by This step can be performed by using or applying a known method, but preferably can be performed by the method shown in Example 4, for example.
- Step X-6 converts the compound represented by formula C-6 into the following formula C-7:
- a compound represented by the following formula C-8 This is a process for producing a compound represented by The compound represented by formula C-7 can be produced by known methods, or commercially available products can be used.
- a commercially available product of the compound represented by formula C-7 for example, 4-methoxyphenyl 3,6-di-O-benzyl-2-deoxy-2-phthalimido- ⁇ -D-glucopyranoside manufactured by Tokyo Chemical Industry Co., Ltd. can be mentioned.
- This step can be carried out by using or applying a known method, but preferably by the method shown in Example 5, for example.
- step X-7 the acetyl group is removed from the compound represented by formula C-8 to form the following formula C-9:
- This is a process for producing a compound represented by This step can be performed by using or applying a known method, but preferably can be performed by the method shown in Example 6, for example.
- step This is a step of producing a compound represented by 9. It has been reported that the elimination reaction of the acetyl group is performed using sodium methoxide in methanol (Org.Biomol.Chem., 2018, 16, 4720-4727), but in that case, ring-opening of the phthalimide group Undesirable side reactions may also occur at the same time. On the other hand, by using a method of reaction with a strong alkoxide base in the presence of an alkyl ester of perfluorocarboxylic acid, it is possible to eliminate the acetyl group while suppressing ring opening of the phthalimide group. Become.
- alkyl ester of perfluorocarboxylic acid used in the above step is not limited as long as the reaction proceeds, but includes methyl trifluoroacetate, ethyl trifluoroacetate, propyl trifluoroacetate, isopropyl trifluoroacetate, butyl trifluoroacetate.
- strong base is not limited as long as the reaction proceeds, but includes, for example, sodium salt, lithium salt, and potassium salt of metal amide; sodium salt, lithium salt, potassium salt, and cesium salt of C 1 to C 20 alkoxide.
- DBU zabicycloundecene
- DBN diazabicyclononene
- TMG 1,1,3,3-tetramethylguanidine
- the sodium salt, lithium salt, and potassium salt of alkoxide include lithium methoxide, sodium methoxide, potassium methoxide, lithium ethoxide, sodium ethoxide, potassium ethoxide, lithium isopropoxide, sodium isopropoxide, and potassium isopropoxide.
- the solvent in this step is not limited as long as the reaction proceeds, but for example, the reaction may be carried out in a C 1 to C 10 alcohol solvent alone, or a C 1 to C 10 alcohol solvent and an amide solvent (dimethylformamide, dimethylacetamide).
- ether solvents tetrahydrofuran, dimethoxyethane, cyclopentyl methyl ether, etc.
- ester solvents ethyl acetate, etc.
- aromatic solvents toluene, etc.
- halogen solvents diichloromethane, etc.
- hydrocarbon solvents hexane, etc.
- a mixed solvent with a nitrile solvent such as acetonitrile
- methanol or a mixed solvent system of methanol and tetrahydrofuran can be used, but it is not limited to these. isn't it.
- C 1 to C 10 alcohol solvent C 1 to C 5 alcohols (methanol, ethanol, propanol, butanol, etc.) can be suitably used.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but is, for example, -20°C to 80°C, preferably 0°C to 70°C, more preferably 20°C to 65°C, particularly preferably , 40°C to 60°C.
- step X-8 in the compound represented by formula C-9, the hydroxyl groups bonded to the 4- and 6-position carbons of D-glucopyranoside are selectively protected using benzaldehyde dimethyl acetal to produce the following Formula C-10:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 7, for example.
- Step X-9 the compound represented by the formula C-10 is subjected to desorption selected from the group consisting of trifluoromethanesulfonyloxy group, nonafluorobutanesulfonyloxy group, 2-nitrobenzenesulfonyloxy group, and 4-nitrobenzenesulfonyloxy group.
- This step can be carried out by using or applying a known method for imparting a leaving group, but preferably by the method shown in Example 8, for example.
- the "compound imparting a leaving group selected from the group consisting of trifluoromethanesulfonyloxy group, nonafluorobutanesulfonyloxy group, 2-nitrobenzenesulfonyloxy group, and 4-nitrobenzenesulfonyloxy group” includes, for example , trifluoromethanesulfonic anhydride, nonafluoro-1-butanesulfonyl fluoride, bis(nonafluoro-1-butanesulfonic acid) anhydride, 2-nitrobenzenesulfonyl chloride, or 4-nitrobenzenesulfonyl chloride, preferably can include trifluoromethanesulfonic anhydride.
- the solvent in this step is not limited as long as the reaction proceeds, but examples include ethyl acetate, toluene, dichloromethane, acetonitrile, cyclopentyl methyl ether, or tert-butyl methyl ether, and preferably ethyl acetate, Mention may be made of toluene or dichloromethane.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but may be, for example, -40°C to 60°C, preferably -30°C to 40°C, more preferably -20°C to 10°C. Can be done.
- This step can be suitably performed in the presence of a base.
- the base used in this step is not particularly limited as long as the reaction proceeds, but examples include 1-methylimidazole, pyridine, 4-dimethylaminopyridine, picoline, lutidine, and collidine, and preferably 1 -Methylimidazole may be mentioned.
- step X-10 the compound represented by formula C-11 is reacted with cesium acetate or tetrabutylammonium acetate to produce the following formula C-12:
- C-12 By producing a compound represented by the formula (wherein X 2 is an acetyl group) or by reacting a compound represented by the formula C-11 with tetrabutylammonium benzoate, the following formula C- 12: This is a process for producing a compound represented by (in the formula, X 2 is a benzoyl group).
- the solvent in this step is not limited as long as the reaction proceeds, but examples include dimethylsulfoxide, dimethylformamide, dimethylacetamide, N-methylpyrrolidone, N,N-dimethylimidazolidinone, sulfolane, tetrahydrofuran, and acetonitrile.
- dimethyl sulfoxide is used.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but for example, 20°C to 80°C, preferably 23°C to 70°C, more preferably 26°C to 60°C, particularly preferably, Examples include 30°C to 50°C.
- step X-11 in the compound represented by formula C-12, the X 2 group is eliminated and the phthalimide group is ring-opened to form the following formula C-13:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known hydrolysis method, but preferably by the method shown in Example 9, for example.
- the generated compound represented by formula C-13 may be used as it is in the next step as it is dissolved in the solvent, or it may be isolated and purified by recrystallization.
- a great advantage of the compound represented by formula C-13 is that it can be isolated and purified by crystallization, and crystallization can almost completely remove impurities with similar structures that are difficult to remove by column purification. In this case, a compound represented by formula C-13 with an HPLC purity of 99% or more can be obtained.
- Isolation and purification by recrystallization in this step can be carried out, for example, by completely removing the solvent from a state dissolved in the solvent by drying under reduced pressure, or by using tetrahydrofuran as a good solvent in the presence of a trace amount of water.
- a method of dropping isopropanol as a poor solvent can be mentioned.
- Recrystallization in this step can also be performed using seed crystals of the compound represented by formula C-13.
- seed crystals for example, use tetrahydrofuran as a good solvent, drop a portion of isopropanol as a poor solvent in the presence of a small amount of water, add the seed crystals, check for crystal precipitation, and then drop the remaining isopropanol. Crystallization can be performed by
- the step of producing the compound represented by formula C-13 from the compound represented by formula C-11 above may be carried out in one pot, for example, as shown in Example 9.
- step X-12 the ring-opened phthalimide group in the compound represented by formula C-13 is ring-closed by dehydration condensation to form the following formula C-14:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 10, for example.
- step X-13 in the compound represented by formula C-14, the hydroxyl group bonded to the carbon at the 2-position of D-mannopyranoside is protected with a benzyl group to form the following formula C-15:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 11, for example.
- step The method includes a step of producing a compound represented by formula C-15 by protecting a hydroxyl group with a benzyl group. Ring opening of phthalimide can be suppressed by performing step X-15 in the presence of lithium tert-butoxide or lithium tert-amoxide. Furthermore, compared to general conditions using sodium hydride, it can be carried out safely and scale-up is easier.
- the solvent in this step is not limited as long as the reaction proceeds, but examples thereof include dimethylacetamide, dimethylformamide, N-methylpyrrolidone, and N,N-dimethylimidazolidinone.
- dimethylacetamide is used. can be mentioned.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but for example, -20°C to 100°C, preferably -15°C to 70°C, particularly preferably -10°C to 50°C. Can be done.
- Step X-14 is carried out by selectively reducing the benzylidene protecting group in the compound represented by formula C-15 (for more details, see Angew. Chem. Int. Ed. 2005, 44, 1665-1668 ), the following formula A-4 in which only the hydroxyl group bonded to the 6-position carbon of D-mannopyranoside is deprotected:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 12, for example.
- the generated compound represented by formula A-4 may be used as it is in the next step as it is dissolved in the solvent, or it may be isolated and purified by column purification or the like.
- the stereoinversion of glucose ⁇ mannose is performed using a redox reaction instead of steps X-9 to X-12, which include steps for performing using an S N 2 reaction.
- the method includes steps X-15 and X-16 shown below.
- step X-15 in the compound represented by formula C-10, the 2-position of D-glucopyranoside is oxidized to produce the following formula C-16: This is a process for producing a compound represented by This step can be performed by using or applying a known method.
- step X-16 in the compound represented by formula C-16, the ketone group bonded to the 2-position carbon of 2-keto-D-glucopyranoside is reduced to produce the following formula C-14:
- This is a process for producing a compound represented by This step can be performed by using or applying a known method.
- the solvent in this step is not limited as long as the reaction proceeds, but examples include diethyl ether, cyclopentyl methyl ether, tert-butyl methyl ether, diisopropyl ether, dipropyl ether, dibutyl ether, and 1,4-dioxane. Preferred is tetrahydrofuran.
- the reaction temperature in this step is not limited as long as the reaction proceeds, and can be, for example, -80°C to 20°C. Note that, as described below, the optimal reaction temperature differs depending on the reducing agent used.
- the oxo group bonded to the 2-position carbon of 2-keto-D-glucopyranoside in the compound represented by formula C-16 is L-selectride, LS-selectride, lithium diisobutyl -tert-butoxyaluminum hydride (LDBBA), with the following formula W:
- L-selectride LS-selectride
- LLBBA lithium diisobutyl -tert-butoxyaluminum hydride
- W A compound represented by (wherein R 3 is the following formula: in the presence of a reducing agent selected from the group consisting of di-tert-butyl methyl phenoxide or hydride, with the proviso that at least two R 3 are di-tert-butyl methyl phenoxide), and combinations thereof. will be returned.
- the stereoselectivity is low (about 7:3), and it is difficult to efficiently obtain the desired stereoinversion from Glc to Man (Org. Biomol. Chem., 2018, 16, 4720-4727).
- the selectivity of the stereoinversion from Glc to Man is greatly improved compared to when NaBH 4 is used (93.6:6.4-98. 1:1.9).
- a compound in which three R 3 's are di-tert-butylmethylphenoxide can be prepared by adding 0.0 It can be obtained by adding dibutylhydroxytoluene (885.41 mg, 4.02 mmol) at °C and then stirring at 25 °C.
- the compound in which two R 3 's are di-tert-butylmethyl phenoxide can be prepared by using 2 molar equivalents of dibutylhydroxytoluene for 1 molar equivalent of lithium aluminum hydride in a similar manner. You can get it by doing this.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but when L-selectride, LS-selectride or LDBBA is used as the reducing agent, the reaction temperature is preferably -80°C. -20°C, more preferably -80°C to -30°C, still more preferably -80°C to -40°C, particularly preferably -80°C to -50°C, reduction
- the reaction temperature is preferably -20°C to 20°C, more preferably -15°C to 15°C, particularly preferably -10°C to 10°C. °C can be mentioned. Therefore, a compound represented by formula W is particularly suitable as a reducing agent for use in this step in that the reaction proceeds at a temperature that is easier to handle.
- a compound represented by formula A-5 is produced from the compound represented by formula A-4.
- the step comprises combining a compound represented by formula A-4 with DDQ (2,3-dichloro-5,6-dicyano-p-benzoquinone) in a mixed solvent of fluorous alcohol and water.
- producing an oligosaccharide represented by the above formula A-5 by reacting and eliminating the 2-naphthylmethyl group in the compound represented by the above formula A-4 (de-2-naphthylmethylation reaction); It can be preferably carried out, for example, by the method shown in Example 31 or 54.
- a substrate such as a sugar in which a 2-naphthylmethyl group is bonded via an oxygen atom is de-2-naphthylmethylated in high yield under mild conditions. product can be obtained. No deterioration of stirring properties or adhesion to the container wall due to the by-product 2,3-dichloro-5,6-dicyano-p-benzohydroquinone was observed, and the reaction could be carried out with good reproducibility. It is also suitable for mass synthesis of materials.
- a method for producing an oligosaccharide represented by the above formula A-5 which comprises adding a compound represented by formula A-4 to DDQ (2) in a mixed solvent of fluorous alcohol and water. , 3-dichloro-5,6-dicyano-p-benzoquinone) to eliminate the 2-naphthylmethyl group in the compound of formula A-5.
- fluorous alcohol is not limited as long as the reaction proceeds, but preferably hexafluoro-2-propanol (HFIP), 2,2,2-trifluoroethanol (TFE), 2,2,3,3,4 , 4,5,5-octafluoro-1-pentanol, nonafluoro-tert-butyl alcohol, and combinations thereof.
- HFIP hexafluoro-2-propanol
- TFE 2,2,2-trifluoroethanol
- 2,2,3,3,4 2,2,3,3,4 , 4,5,5-octafluoro-1-pentanol
- nonafluoro-tert-butyl alcohol and combinations thereof.
- the above de-2-naphthylmethylation reaction is not limited as long as the reaction proceeds, but it is preferably carried out at -35°C to 70°C, more preferably at -30°C to -10°C.
- the compound represented by formula A-6 can be obtained in a purified form by the following purification method.
- the purification method includes stopping the reaction between the compound represented by the above formula A-3 and the above formula A-5, and then containing the generated compound represented by the above formula A-6 and impurities.
- a hydrophobic carrier and water are added to a water-soluble organic solvent to adsorb the compound represented by the above formula A-6 into the hydrophobic carrier, and then filtered and the hydrophobic carrier is combined with the water-soluble organic solvent and water.
- Contaminants are removed by washing with a mixed solution of the above formula A-6, and then the compound represented by the above formula A-6 is eluted from the hydrophobic carrier using an organic solvent.
- the present invention makes use of the hydrophobicity of the substrate itself, thereby reducing the number of steps for tag desorption and preventing a decrease in tag functionality during oligomerization. This makes it possible to produce oligosaccharides more efficiently.
- the compound represented by formula A-6 can be easily separated and purified from the decomposition product derived from the compound represented by formula A-4 by the purification method described above.
- the purification of the compound represented by the above formula A-6 is not limited to the purification in this step I-1-1. Therefore, in one embodiment of the present invention, a hydrophobic carrier and water are added to a water-soluble organic solvent containing the compound represented by the above formula A-6 and impurities, and the above formula A-6 is added to the hydrophobic carrier.
- the compound represented by the above formula is adsorbed, and impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-6 above by eluting the compound represented by A-6 from a hydrophobic carrier.
- the above purification method is also applicable to the purification of organic compounds other than sugar compounds.
- an oligosaccharide (protected oligosaccharide) having a sugar chain structure consisting of 3 to 15 sugar residues with one or all of the hydroxyl groups in the sugar protected is preferably purified.
- the sugar chain protecting group includes, but is not limited to, alkyl ether, benzyl ether, silyl ether, ester, and carbonate ester.
- impurities refer to compounds and reagents other than the protected oligosaccharide (in this step, the compound represented by the above formula A-6), including the reagents used in the synthesis reaction of the protected oligosaccharide, their remains, and the protected oligosaccharide. It mainly refers to sugars other than the protected oligosaccharide, such as monosaccharide or disaccharide compounds used in the elongation reaction, or by-products produced by the deprotection reaction of the protected oligosaccharide.
- hydrophobic carrier refers to a hydrophobic adsorption material that adsorbs specific compounds including sugar compounds.
- “ is poly(styrene/divinylbenzene) polymer gel resin, polystyrene-divinylbenzene resin, polyhydroxy methacrylate resin, styrene vinylbenzene copolymer resin, polyvinyl alcohol resin, polystyrene resin, polymethacrylate resin, chemically bonded silica gel resin, and combinations thereof, but are not limited thereto.
- the above-mentioned "chemically bonded silica gel resin” includes (1) a resin obtained by reacting silica gel with a silane coupling agent, (2) silica gel containing dimethyloctadecyl, octadecyl, trimethyloctadecyl, dimethyloctyl, octyl, butyl, ethyl , a resin obtained by chemically bonding a methyl, phenyl, cyanopropyl, or aminopropyl group, (3) a resin obtained by chemically bonding a docosyl or triacontyl group to silica gel, and (4) a resin obtained from the above (1) to Although selected from the group consisting of combinations (3), octadecyl group-bonded silica gel resin (ODS resin) is preferably used, but is not limited thereto.
- ODS resin octadecyl group-bonded silica gel resin
- water-soluble organic solvent is not particularly limited, but includes water-soluble alcohol solvents (preferably C 1 to C 4 ), water-soluble nitrile solvents (acetonitrile, etc.), water-soluble ether solvents ( Tetrahydrofuran, etc.), water-soluble ketone solvents (acetone, etc.), water-soluble amide solvents (dimethylformamide, etc.), or water-soluble sulfoxide solvents (dimethyl sulfoxide, etc.) can be used, and acetonitrile is preferably used. Can be done.
- water-soluble alcohol solvents preferably C 1 to C 4
- water-soluble nitrile solvents acetonitrile, etc.
- water-soluble ether solvents Tetrahydrofuran, etc.
- water-soluble ketone solvents acetone, etc.
- water-soluble amide solvents dimethylformamide, etc.
- water-soluble sulfoxide solvents dimethyl sulfoxide, etc.
- the "organic solvent” used in the process of elution of the target product from the hydrophobic carrier is not particularly limited, but includes nitrile solvents (acetonitrile, etc.), ether solvents (tetrahydrofuran, etc.), ester solvents ( Ethyl acetate, etc.), ketone solvents (acetone, etc.), halogen solvents (dichloromethane, etc.), or aromatic solvents (toluene, etc.), or a mixed solvent containing at least one of the above solvent systems can be used. , acetonitrile, ethyl acetate, tetrahydrofuran, and toluene can be suitably used.
- the above purification step is not particularly limited, but can be carried out at a temperature of 0°C to 50°C.
- the compound represented by the above formula A-8 can be produced from the compound represented by the above formula A-6 by the following steps I-1-2 to I-1-3. However, it is not limited to these manufacturing processes.
- step I-1-2 the 4-methoxyphenyl group is deprotected from the compound represented by the above formula A-6 to obtain the formula A-7: This is a process of producing a compound represented by
- this step comprises reacting the compound represented by the above formula A-6 with ⁇ 3-iodane in a fluorous alcohol and water to deprotect the 4-methoxyphenyl group.
- This is a step of producing a compound represented by A-7.
- This step can be suitably performed, for example, by the method shown in Example 33 or 56.
- ⁇ 3-iodane means a trivalent hypervalent iodine compound.
- a compound represented by the formula R 4a -I(OR 4b ) 2 (wherein R 4a is an unsubstituted or substituted phenyl group, and R 4b is H, acetoxy, trifluoroacetoxy , tosyloxy, methanesulfonyloxy, and combinations thereof).
- R 4a may be a "substituted phenyl group", and the substituent includes, for example, a linear or branched saturated or unsaturated hydrocarbon group, an oxygen-containing group (alkoxy, ester etc.), nitrogen-containing groups (cyano, azide, etc.), halogen atoms (for example, fluorine atoms, chlorine atoms, bromine atoms, iodine atoms), etc., but more preferably hydrocarbon groups, oxygen-containing substituents, halogen It is an atom.
- substituents contain carbon, for example, those having 1 to 5 carbons, or those having 1 to 3 carbons can be suitably used.
- ⁇ 3-iodane examples include [bis(trifluoroacetoxy)iodo]benzene (PIFA), [hydroxy(tosyloxy)iodo]benzene (HTIB), (diacetoxyiodo)benzene (PIDA), [bis(trifluoroacetoxy)iodo]benzene (PIFA), [hydroxy(tosyloxy)iodo]benzene (HTIB), Examples include, but are not limited to, acetoxy)iodo]pentafluorobenzene, and [hydroxy(methanesulfonyloxy)iodo]benzene.
- fluorous alcohol used in the above step means a fluorine-containing alcohol compound in which all carbons except those bonded to hydroxyl groups contain fluorine. As long as fluorine substitution is allowed, it is preferred that the fluorous alcohol has more fluorine.
- Fluorous alcohols include, but are not limited to, fluorous aliphatic alcohols.
- the hydrocarbon moiety in the fluorous aliphatic alcohol may be saturated or unsaturated, linear or branched, and cyclic.
- the fluorous aliphatic alcohol is, for example, a fluorous C 2 -C 8 aliphatic alcohol, preferably a fluorous C 2 -C 5 aliphatic alcohol, more preferably a fluorous C 2 -C 3 aliphatic alcohol.
- fluorous alcohols include hexafluoro 2-propanol (HFIP), 2,2,2-trifluoroethanol (TFE), 2,2,3,3,4,4,5,5-octafluoro-1 -pentanol, nonafluoro-tert-butyl alcohol, and combinations thereof.
- HFIP hexafluoro 2-propanol
- HFIP hexafluoro 2-propanol
- This step is performed in the coexistence of the fluorous alcohol and "water".
- the amount of water can be appropriately set from the viewpoint of achieving a high yield of the product, but for example, about 1.0 equivalent or more in molar ratio to the compound represented by formula A-6, It may be about 1.5 equivalents or more, about 2.0 equivalents or more, or about 2.5 equivalents or more, and may be about 10 or less, about 8 or less, about It can be 5 or less, or about 3 or less.
- an "additive" may be further added to the fluorous alcohol and water.
- the additive is preferably selected from the group consisting of sodium dihydrogen phosphate, potassium dihydrogen phosphate, disodium hydrogen phosphate, trifluoroacetic acid, and combinations thereof.
- the amount of the additive can be set appropriately, for example, about 0.5 to 8 equivalents, about 1 to 6 equivalents, or about 1.5 to 5 equivalents relative to the compound represented by formula A-6. obtain.
- Step I-1-3 is a step of producing a compound represented by the above formula A-8 from a compound represented by the above formula A-7. This step can be carried out by using or applying a known method, but preferably by the method shown in Example 34 or 57, for example.
- this step comprises converting the compound represented by the above formula A-7 into 2,2,2-trifluoro-N-phenylacetimidoyl chloride (TFPC) in the presence of N-methylimidazole.
- TFPC 2,2,2-trifluoro-N-phenylacetimidoyl chloride
- This is a step of producing a compound represented by the above formula A-8 by reacting with.
- DBU can also be used instead of N-methylimidazole.
- the solvent in this step is not limited as long as the reaction proceeds, but examples include dichloromethane, toluene, ethyl acetate, acetonitrile, or tetrahydrofuran, and dichloromethane is preferred.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but is preferably -20°C to 40°C, more preferably -10°C to 35°C, particularly preferably 0°C to 30°C. can be mentioned.
- This step is preferably performed in the presence of a dehydrating agent.
- the dehydrating agent in this step is not limited as long as the reaction progresses, but examples include molecular sieves, and preferably molecular sieves 4A powder with a powder particle size of 10 ⁇ m or less.
- the generated compound represented by formula A-8 can be used as it is in the next step as long as it is dissolved in the solvent after the operation to remove the base used in the reaction.
- it can be isolated and purified by column purification or the like. Isolation and purification using a column include, for example, isolation and purification using silica gel as a stationary phase and dichloromethane or a toluene-ethyl acetate mixed solvent system as a mobile phase.
- Step I-2 the compound represented by the above formula A-8 is converted into the following formula A-9:
- the following formula A-11 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups)
- Step I-2 includes the following steps I-2-1 and I-2-2.
- Step I-2-1 produces a compound represented by formula A-10 by forming a ⁇ -1,4-glycosidic bond between a compound represented by formula A-8 and a compound represented by formula A-9. It is a process.
- the compound represented by formula A-9 can be produced by known methods, or commercially available products can be used.
- As a commercially available product of the compound represented by formula A'-9 (a compound represented by formula A-9, in which R 1 is 4-methoxyphenyl), for example, 4 manufactured by Tokyo Chemical Industry Co., Ltd. -methoxyphenyl 3,6-di-O-benzyl-2-deoxy-2-phthalimido- ⁇ -D-glucopyranoside.
- the compound represented by the formula A''-9 can be obtained by subjecting the compound represented by the formula A-12 produced as described below to the treatment shown in Example 59 to obtain isopropyl 4-O-acetyl 3,6-di-O-benzyl-2-deoxy-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)- ⁇ -D-glucopyranoside (formula F''- 1) is obtained, and the compound represented by formula F''-1 is further subjected to the treatment shown in Example 60 to obtain a compound represented by formula A''-9. Can be done.
- This step which is a step of producing a compound represented by formula A-10, can be performed by using or applying a known method, but preferably, for example, by the method shown in Example 35 or 61. It can be carried out.
- the compound represented by formula A-10 can be obtained in a purified form by the following purification method.
- the purification method includes stopping the reaction between the compound represented by the above formula A-8 and the above formula A-9, and then containing the generated compound represented by the above formula A-10 and impurities.
- a hydrophobic carrier and water are added to a water-soluble organic solvent, and the compound represented by the above formula A-10 is adsorbed into the hydrophobic carrier, and then filtered and the hydrophobic carrier is combined with the water-soluble organic solvent and water.
- Contaminants are removed by washing with a mixed solution of the above formula A-10, and then the compound represented by the above formula A-10 is eluted from the hydrophobic carrier using an organic solvent.
- the compound represented by formula A-9 which is a monosaccharide
- the compound represented by formula A-10 which is a pentasaccharide
- hexane which is a typical column solvent system.
- - Separation was difficult under ethyl acetate conditions as they had the same Rf value, but by using the purification method of the present invention, it has become possible to easily separate monosaccharides and pentasaccharides that are extremely similar in polarity. became.
- a hydrophobic carrier and water are added to a water-soluble organic solvent containing the compound represented by the above formula A-10 and impurities, and the above formula A-10 is added to the hydrophobic carrier.
- the compound represented by the above formula is adsorbed, and impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-10 above by eluting the compound represented by A-10 from a hydrophobic carrier.
- impurities refer to compounds and reagents other than the protected oligosaccharide (in this step, the compound represented by formula A-10), including the reagents used in the synthesis reaction of the protected oligosaccharide and their remains, and the components of the protected oligosaccharide. It mainly refers to sugars other than the protected oligosaccharide, such as monosaccharide or disaccharide compounds used in the elongation reaction, or by-products produced by the deprotection reaction of the protected oligosaccharide.
- Step I-2-2 is a step of producing a compound represented by formula A-11 from a compound represented by formula A-10.
- this step I-2-2 involves reacting the compound represented by formula A-10 with a strong base in the presence of an alkyl ester of perfluorocarboxylic acid in a solvent to remove an acetyl group.
- This is a step of producing a compound represented by formula A-11 by separating (deacetylation reaction), and can be preferably carried out, for example, by the method shown in Example 36 or 62.
- the deacetylation reaction can be carried out in the same manner as the deacetylation reaction described in step By using the reaction method, it becomes possible to perform the deacetylation reaction while suppressing ring opening of the phthalimide group.
- step X-7 The alkyl ester of perfluorocarboxylic acid, strong base, solvent, and reaction temperature of the step used in this step are as described in step X-7 above.
- step I-3 the compound represented by the above formula A-11 is converted into the following formula A-12:
- a compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is produced, and then the phthaloyl group which is a protecting group for the amino group on the compound represented by the above formula A-13 and the acetyl group on the hydroxyl group are removed to obtain the following formula A-14:
- the amino group in the compound represented by formula A-14 is converted into an aryloxycarbonyl (COOAr)
- Step I-3-1 is to form a compound represented by the above formula A-13 by forming a ⁇ -1,2-glycosidic bond between the compound represented by the above formula A-11 and the compound represented by the above formula A-12. This is the process of generating.
- the above-mentioned glycosidic bonding step can be performed by using or applying a known method, and preferably can be performed by the method shown in Example 37 or 63, for example.
- the compound represented by formula A-12 can be produced as follows.
- the compound represented by formula A-13 may be purified as described below.
- substep Z-2 comprises reacting a compound of formula F-1 with ⁇ 3-iodane in a fluorous alcohol and water to eliminate the 4-methoxyphenyl group.
- This is a step for producing a compound represented by formula F-2, and can be preferably carried out, for example, by the method shown in Example 14.
- This step can be carried out according to the above step I-1-2, and the fluorous alcohol and ⁇ 3-iodane used in this step are the same as those used in the above step I-1-2. can be used.
- substep Z-3 is carried out by reacting with 2,2,2-trifluoro-N-phenylacetimidoyl chloride (TFPC) in the presence of N-methylimidazole.
- TFPC 2,2,2-trifluoro-N-phenylacetimidoyl chloride
- This is a step of producing the compound represented by A-12, and can be preferably carried out, for example, by the method shown in Example 15 or 58.
- the equivalent weight of TFPC can be reduced compared to, for example, using potassium carbonate. This makes it possible to obtain the desired product in high yield.
- the solvent and reaction temperature used, as well as the fact that it is preferably carried out in the presence of a dehydrating agent, and that it may be isolated and purified by column purification etc. are the same as in the above step I-1-3. It is.
- the compound represented by formula A-13 can be obtained in a purified form by the following purification method.
- the purification method includes stopping the reaction between the compound represented by the above formula A-11 and the above formula A-12, and then containing the generated compound represented by the above formula A-13 and impurities.
- a hydrophobic carrier and water are added to a water-soluble organic solvent to adsorb the compound represented by the above formula A-13 into the hydrophobic carrier, and then filtered and the hydrophobic carrier is added to the water-soluble organic solvent.
- Contaminants are removed by washing with a mixed solution with water, and then the compound represented by the above formula A-13 is eluted from the hydrophobic carrier using an organic solvent.
- the purification method uses a small amount of hydrophobic carrier to produce a large amount of high-quality oligosaccharides in the liquid phase synthesis of oligosaccharide chains. And it has become possible to manufacture efficiently.
- a hydrophobic carrier and water are added to a water-soluble organic solvent containing the compound represented by the above formula A-13 and impurities, and the above formula A-13 is added to the hydrophobic carrier.
- the compound represented by formula A is adsorbed, and impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the above-mentioned soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-13 above by eluting the compound represented by formula A-13 from a hydrophobic carrier.
- contaminants refer to compounds and reagents other than the protected oligosaccharide (in this step, the compound represented by formula A-13), including the reagents used in the synthesis reaction of the protected oligosaccharide, their remains, and the components of the protected oligosaccharide. It mainly refers to sugars other than the protected oligosaccharide, such as monosaccharide or disaccharide compounds used in the elongation reaction, or by-products produced by the deprotection reaction of the protected oligosaccharide.
- hydrophobic carrier reverse phase partition chromatography packing resin, etc.
- water-soluble organic solvent water-soluble organic solvent
- organic solvent organic solvent
- Step I-3-2 removes the phthaloyl group that is a protecting group for the amino group on the compound represented by formula A-13 and the acetyl group on the hydroxyl group to produce a compound represented by formula A-14. It is a process.
- This step can be suitably carried out, for example, by the method shown in Example 38 or 64, for example, by adding n-butanol and ethylenediamine to a solution containing the compound represented by formula A-13. However, it is not limited to these methods. Also, after adding the above n-butanol and ethylenediamine, adding an acid (for example, fumaric acid) and stirring, seed crystals are inoculated, and then the formula A-14 is added.
- an acid for example, fumaric acid
- Crystals of the acid salt (eg, fumarate) of the compound shown may be obtained (see, eg, Example 64).
- analogs (isomers, etc.) of the compound represented by formula A-14 can be removed by filtration, making it possible to achieve high purity.
- fumaric acid can be suitably used as the "acid” to be added, but is not limited thereto.
- the compound represented by formula A-14 can be obtained in a purified form by the following purification method.
- the purification method involves adding a hydrophobic carrier and water to a water-soluble organic solvent containing the compound represented by the formula A-14 and impurities produced as described above, and adding the above formula to the hydrophobic carrier.
- the compound represented by A-14 is adsorbed, and impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- the method includes purifying the compound represented by the above formula A-14 by eluting the compound represented by the above formula A-14 from a hydrophobic carrier.
- a hydrophobic carrier and water are added to a water-soluble organic solvent containing the compound represented by the above formula A-14 and impurities, and the above formula A-14 is added to the hydrophobic carrier.
- the compound represented by the above formula is adsorbed, and impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-14 above by eluting the compound represented by A-14 from a hydrophobic carrier.
- contaminants refer to compounds and reagents other than the protected oligosaccharide (in this step, the compound represented by formula A-14), including the reagents used in the synthesis reaction of the protected oligosaccharide, their remains, and the components of the protected oligosaccharide. It mainly refers to sugars other than the protected oligosaccharide, such as monosaccharide or disaccharide compounds used in the elongation reaction, or by-products produced by the deprotection reaction of the protected oligosaccharide.
- Step I-3-3 converts the amino group in the compound represented by formula A-14 into an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, a 2,2,2-trichloroethoxycarbonyl (Troc) group, and a phthaloyl (Phth) group to protect the compound represented by the above formula A-15 (wherein R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or 2 , 2,2-trichloroethoxycarbonyl (Troc) group, and R 6 is a hydrogen atom, or R 5 and R 6 together with the nitrogen atom to which they are bonded form a phthalimide group.
- COOAr aryloxycarbonyl
- Ac acetyl
- Troc 2,2,2-trichloroethoxycarbonyl
- Phth phthaloyl
- the temporary protecting group on the nitrogen of glucosamine is selected from aryloxycarbonyl (COOAr) group, 2,2,2-trichloroethoxycarbonyl (Troc) group, and phthaloyl (Phth) group.
- COOAr aryloxycarbonyl
- Troc 2,2,2-trichloroethoxycarbonyl
- Phth phthaloyl
- the above-mentioned disadvantages can be avoided by protecting with a protecting group such as -NHAc and deprotecting it after the glycosylation reaction to form an -NHAc group.
- aryl (Ar) group in aryloxycarbonyl means a group produced by removing one hydrogen atom on an aromatic ring in an aromatic hydrocarbon, and includes, but is not limited to, a phenyl group, 2-naphthyl group, 1-naphthyl group, 2-pyridyl group, 3-pyridyl group, nitrophenyl group, chlorophenyl group, fluorophenyl group, bromophenyl group, iodophenyl group, methoxyphenyl group, and C 1 -C 4 alkyl group Examples include phenyl group, preferably phenyl group.
- glycosylation reaction of the aryloxycarbonyl (COOAr) group proceeds better than other protecting groups, and the subsequent deprotection reaction can be carried out under suitable conditions such as general hydrolysis conditions at room temperature within 1 hour. It has been found that deprotection of
- the above step can be suitably carried out, for example, by the method shown in Example 39 or 65, for example, a solution of the compound of formula A-14 in tetrahydrofuran is added with tetrahydrofuran and sodium bicarbonate, hydrogen carbonate.
- a solution of the compound of formula A-14 in tetrahydrofuran is added with tetrahydrofuran and sodium bicarbonate, hydrogen carbonate.
- This can be carried out, without limitation, by adding an aqueous solution of potassium, disodium hydrogen phosphate, or dipotassium hydrogen phosphate (preferably sodium hydrogen carbonate is used) in water.
- the compound shown by the above formula A-15 can be obtained. (wherein R 5 and R 6 together with the nitrogen atom to which they are attached form a phthalimide group) may be produced.
- the selective removal of the acetyl group can be performed under methyl trifluoroacetate conditions, but is not limited thereto. This step brings about the same result as when a phthaloyl (Phth) group is selected as the protecting group for the amino group in the compound represented by the above formula A-14 in Steps I-3-2 and I-3-3. .
- step I-4 the compound represented by the above formula A-15 is converted into the following formula A-16:
- a compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group, and R 6 is a hydrogen atom, or R 5 and R 6 forms a phthalimide group together with the nitrogen atom to which they are bonded), and then the protecting group of the amino group in the compound represented by formula A-17 is removed to form the following formula A.
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbony
- step I-4 includes the following steps I-4-1 to I-4-4.
- This step is a step of producing a compound represented by the formula A-17 by forming a ⁇ -1,4-glycosidic bond between the compound represented by the above formula A-15 and the compound represented by the above formula A-16.
- the above-mentioned glycosidic bonding step can be performed by using or applying a known method, and preferably can be performed by the method shown in Example 40 or 66, for example.
- the compound represented by the above formula A-16 can be produced as in the following substeps V-1 to V-11.
- This process includes as an essential small step V-7, which will be described later, in which a disaccharide block is synthesized by linking two molecules of monosaccharide with an ⁇ -2,6-glycosidic bond, but other than that, the monosaccharide Alternatively, it can be carried out using a conventional method for oligosaccharide production or by applying such a conventional method.
- step V includes the following substeps.
- the small process V-1 is the following formula G-1:
- the compound represented by formula G-1 which is the starting material of this step, is a compound identified as CAS number 100759-10-2, and can be produced by known methods, for example, as described in Examples 16 and 17. It can be manufactured by the method shown. This step can be carried out by using or applying a known method, but preferably by the method shown in Example 18, for example.
- this step is a step of solid-phase extraction of the compound represented by formula G-3 by contacting a solvent in which the generated compound represented by formula G-3 is dissolved with silica gel. including. Since the unreacted compound represented by formula G-2 and the desorbed benzaldehyde are not adsorbed to silica gel, the compound represented by formula G-3 can be efficiently purified through this step.
- Examples of the solvent for dissolving the compound represented by formula G-3 include toluene, heptane, dichloromethane, chloroform, or a combination thereof, preferably toluene, dichloromethane, chloroform, or a combination thereof. Combinations may be mentioned, particularly preferably toluene, but not limited thereto.
- silica gel used in this step examples include silica gel in an amount of 2 to 5 times the amount of the raw material, preferably silica gel in an amount of 2 to 4 times the amount of the raw material, and more preferably Preferably, the amount of silica gel is about 3 times that of the raw material.
- the solvent for eluting the compound represented by formula G-3 adsorbed on silica gel is not particularly limited as long as it does not dissolve silica gel and can elute the target product, but examples include cyclopentyl methyl ether. , ethyl acetate, or tert-butyl methyl ether.
- Sub-process V-3 is the following formula G-4:
- the compound represented by formula G-4 which is the starting material for this step, can be produced by a known method, or a commercially available product can be used.
- a commercially available product of the compound represented by formula G-4 for example, N-acetylneuraminic acid manufactured by Tokyo Kasei Kogyo may be mentioned.
- This step can be carried out by using or applying a known method, but preferably by the method shown in Example 20, for example.
- Substep V-5 is the following formula G-7 by reacting the compound represented by formula G-6 with 2,2,2-trifluoro-N-phenylacetimidoyl chloride (TFPC):
- TFPC 2,2,2-trifluoro-N-phenylacetimidoyl chloride
- this step is a step of producing a compound represented by formula G-7 by reacting a compound represented by formula G-6 with TFPC in the presence of N-methylimidazole.
- N-methylimidazole is used as the base in this step, compared to when K 2 CO 3 is used, it is possible to reduce the equivalent amount of TFPC, and even in that case, the target product can be obtained in high yield. Obtainable. Since TFPC is an expensive reagent, improving the yield of the process is extremely beneficial for commercial production.
- the solvent in this step is not limited as long as the reaction proceeds, but examples include dichloromethane, toluene, ethyl acetate, acetonitrile, or tetrahydrofuran, and dichloromethane is preferred.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but is preferably 0°C to 40°C, more preferably 0°C to 35°C, particularly preferably 0°C to 30°C. Can be done.
- This step is preferably performed in the presence of a dehydrating agent.
- the dehydrating agent in this step is not limited as long as the reaction progresses, but examples include molecular sieves, and preferably molecular sieves 4A powder with a powder particle size of 10 ⁇ m or less.
- the generated compound represented by formula G-8 may be used as it is in the next step as it is dissolved in the solvent, or it may be isolated and purified by recrystallization.
- the great advantage of the compound represented by formula G-8 is that it can be isolated and purified by crystallization, and the compound represented by formula G-8 with HPLC purity of 99% or more can be obtained by crystallization. Since it does not contain any impurities, it becomes possible to carry out the glycosylation reaction in the next step stably. Isolation and purification by recrystallization can be carried out, for example, by adding heptane to a solution of cyclopentyl methyl ether and crystallizing it.
- This step can be suitably performed in the presence of a Lewis acid.
- the Lewis acid in this step is not limited as long as the reaction proceeds, but examples include trimethylsilyl trifluoromethanesulfonate, triisopropylsilyl trifluoromethanesulfonate, and tert-butyldimethylsilyl trifluoromethanesulfonate, which are preferably can include trimethylsilyl trifluoromethanesulfonate.
- the solvent in this step is not limited as long as the reaction proceeds, but examples include cyclopentyl methyl ether, diisopropyl ether, tert-butyl methyl ether, diethyl ether, dibutyl ether, dipropyl ether, 1,4-dioxane, dichloromethane, , 2-dichloroethane, toluene, chlorobenzene, trifluoromethylbenzene, propionitrile or acetonitrile, preferably cyclopentyl methyl ether.
- the reaction temperature in this step is not limited as long as the reaction proceeds, but for example, -78°C to 0°C, preferably -78°C to -20°C, more preferably -78°C to -30°C, Particularly preferred is -78°C to -40°C.
- This step is not limited as long as the reaction proceeds, but for example, a mixed solution of a compound represented by formula G-8 and a compound represented by formula G-3 (preferably a mixed solution of cyclopentyl methyl ether) is mixed with a Lewis acid (preferably a cyclopentyl methyl ether solution), or a solution of the compound represented by formula G-8 (preferably a cyclopentyl methyl ether solution) is added dropwise to a Lewis acid and a solution of the compound represented by formula G-3 (preferably a cyclopentyl methyl ether solution).
- a mixed solution of a compound represented by formula G-8 and a compound represented by formula G-3 preferably a mixed solution of cyclopentyl methyl ether
- a Lewis acid preferably a cyclopentyl methyl ether solution
- a solution of the compound represented by formula G-8 preferably a cyclopentyl methyl ether solution
- the dropping time is not limited as long as the reaction proceeds, but for example, 30 minutes to 5 hours, preferably 1 hour to 4 hours, more preferably 2 hours to 3.5 hours, particularly preferably about 3 hours. It's time.
- this step includes solid-phase extraction of the compound represented by Formula G-9 by contacting a solvent in which the compound represented by Formula G-9 is dissolved with silica gel.
- N-phenyltrifluoroacetamide which is produced as a by-product in the glycosylation reaction, and other trace impurities that are not adsorbed on silica gel in toluene solvent are not adsorbed on silica gel, so this process efficiently converts the compound represented by formula G-9. It can be refined well.
- Examples of the solvent for dissolving the compound represented by formula G-9 include toluene, heptane, dichloromethane, chloroform, or a combination thereof, preferably toluene, dichloromethane, chloroform, or a combination thereof. Combinations may be mentioned, particularly preferably toluene, but not limited thereto.
- silica gel used in this step examples include silica gel in an amount of 2 to 5 times the amount of the raw material, preferably silica gel in an amount of 2 to 4 times the amount of the raw material, and more preferably Preferably, the amount of silica gel is about 3.5 times the amount of the raw material.
- the solvent for eluting the compound represented by formula G-9 adsorbed on silica gel is not particularly limited as long as it does not dissolve silica gel and can elute the target product, but examples include ethyl acetate, Examples include cyclopentyl methyl ether and tert-butyl methyl ether, and preferably ethyl acetate.
- This step can be performed, for example, by the method shown in Example 24.
- this step includes solid-phase extraction of the compound represented by Formula G-11 by contacting a solvent in which the compound represented by Formula G-11 is dissolved with silica gel.
- By-products such as the diacetyl form of the compound represented by formula G-3 produced by acetylation of the compound represented by formula G-3 used in excess in the upstream glycosylation reaction are not adsorbed on silica gel.
- the compound represented by formula G-11 can be efficiently purified.
- Examples of the solvent for dissolving the compound represented by formula G-11 include toluene, heptane, dichloromethane, chloroform, or a combination thereof, preferably toluene, dichloromethane, chloroform, or a combination thereof. Combinations may be mentioned, particularly preferably toluene, but not limited thereto.
- silica gel used in this step examples include silica gel in an amount of 2 to 5 times the amount of the raw material, preferably silica gel in an amount of 2 to 4 times the amount of the raw material, and more preferably Preferably, the amount of silica gel is about 3.5 times the amount of the raw material.
- the solvent for eluting the compound represented by formula G-11 adsorbed on silica gel is not particularly limited as long as it does not dissolve silica gel and can elute the target product, but examples include ethyl acetate, Examples include cyclopentyl methyl ether and tert-butyl methyl ether, and preferably ethyl acetate.
- ⁇ Small process V-10> in the sub-step V-10, in the compound represented by the formula G-11, the allyl group bonded to the carbon at the 1-position of D-galactopyranoside is removed to produce the following formula G-12:
- This is a process for producing a compound represented by This step can be carried out by using or applying a known method, but preferably by the method shown in Example 27-1, for example.
- the compound represented by formula G-12 includes a compound represented by formula G-11 and carbonylchlorohydridotris(triphenylphosphine)ruthenium(II).
- the solution is stirred, and then water and 1,3-dibromo-5,5-dimethylhydantoin, iodine, or N-bromosuccinimide are added to the solution and stirred. It can also be produced by removing the allyl group bonded via oxygen to the 1st carbon of D-galactopyranoside.
- the solvent used in this step tetrahydrofuran, tetrahydropyran, cyclopentyl methyl ether, toluene, 2-methyltetrahydrofuran, 1,2-dimethoxyethane, t-butyl methyl ether, etc. may be used, and the isomerization temperature is , for example, at 40 to 65°C.
- Substep V-11 is a compound represented by formula G-12, by reacting with 2,2,2-trifluoro-N-phenylacetimidoyl chloride (TFPC) to produce a compound represented by formula A-16 above.
- TFPC 2,2,2-trifluoro-N-phenylacetimidoyl chloride
- This step can be performed by using or applying a known method, but preferably, it can be performed by the method shown in Example 28, for example.
- the compound represented by formula A-17 can be obtained in a purified form by the following purification method.
- the purification method includes stopping the reaction between the compound represented by the above formula A-15 and the above formula A-16, and then containing the generated compound represented by the above formula A-17 and impurities.
- a hydrophobic carrier and water are added to a water-soluble organic solvent to adsorb the compound represented by the above formula A-17 into the hydrophobic carrier, and then filtered and the hydrophobic carrier is combined with the water-soluble organic solvent and water.
- Contaminants are removed by washing with a mixed solution of the above formula A-17, and then the compound represented by the above formula A-17 is eluted from the hydrophobic carrier using an organic solvent.
- a hydrophobic carrier and water are added to a water-soluble organic solvent containing the compound represented by the above formula A-17 and impurities, and the above formula A-17 is added to the hydrophobic carrier.
- the compound represented by the above formula is adsorbed, and impurities are removed by filtering and washing the hydrophobic carrier with a mixed solution of the water-soluble organic solvent and water.
- a method comprising purifying the compound represented by formula A-17 above by eluting the compound represented by A-17 from a hydrophobic carrier.
- impurities refer to compounds and reagents other than the protected oligosaccharide (in this step, the compound represented by formula A-17), including the reagents used in the synthesis reaction of the protected oligosaccharide and their remains, and the components of the protected oligosaccharide. It mainly refers to sugars other than the protected oligosaccharide, such as monosaccharide or disaccharide compounds used in the elongation reaction, or by-products produced by the deprotection reaction of the protected oligosaccharide.
- This step is a step of removing the protecting group for the amino group and the acyl protecting group for the hydroxyl group on the compound represented by the formula A-17 to produce the compound represented by the formula A-18.
- the above-mentioned removal (deprotection) of the protecting group of the amino group can be carried out by using or applying a known method, but preferably, it can be carried out by the method shown in Example 43 or 67, for example. For example, it can be carried out by sequentially adding 1,2-dimethoxyethane and an aqueous solution of potassium hydroxide, sodium hydroxide, or lithium hydroxide, but is not limited thereto.
- M + is preferably, but not limited to, a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation.
- the compound represented by formula A-18 obtained in the above step can be isolated as its free form (compound represented by formula A-18-FF) by a known or well-known method.
- the compound represented by formula A-18 is a form of "salt" of the compound represented by formula A-18-FF, but as stated above, salts are formed at the hydroxyl group, amino group, etc. in the compound.
- Steps I-4-3 to I-4-4 below are exemplary embodiments for producing a compound represented by formula A-20 from a compound represented by formula A-18, It is not limited to the process.
- Step I-4-3> the amino group on the compound represented by formula A-18 is protected with an acetyl group to form the following formula A-19:
- a compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, lithium ion, potassium ion, or protonated triethylamine cation).
- the above-mentioned protection of the amino group with the acetyl group can be carried out by using or applying a known method, and preferably by the method shown in Example 44 or 68, for example.
- Step I-4-4> This step is a step in which the benzyl group is removed from the benzyloxy group on the compound represented by Formula A-19 to produce the compound represented by Formula A-20 above.
- the above benzyl group can be removed by using or applying a known method, but preferably by the method shown in Example 45 or 69, for example, formula A-- This can be carried out by adding N-methylpyrrolidone and Pd/C to the compound represented by No. 19, and performing the following steps: reduced pressure ⁇ nitrogen substitution and hydrogen pressurization ⁇ depressurization, but the method is not limited thereto.
- step I-5 the compound represented by the above formula A-20 is converted into the following formula A-21, which is an azido-PEG linker:
- This process includes a step of producing an oligosaccharide represented by the above formula A-22 by reacting with a compound represented by (11-azido-3,6,9-trioxaundecane-1-amine).
- the compound represented by the above formula A-20 and the compound represented by the formula A-21 can be bonded by using or applying a known method, but preferably, for example, Example 51 or 70
- a solution containing a compound represented by formula A-20 is added with a compound represented by formula A-21, N-ethyldiisopropylamine, and hexafluorophosphoric acid (benzotriazole-1).
- the compound represented by formula A-21 has a purity measured by HPLC (herein also referred to as "HPLC purity" It preferably has a purity of 95% or more, more preferably 96% or more or 97% or more, even more preferably 98% or more or 99% or more.
- HPLC purity a purity measured by HPLC
- the purpose of purifying the compound represented by A-21 is that the commercially available reagent for the compound contains several other impurities, including dimers, and the conventional technology
- the present inventors found that three types of tartaric acid derivatives represented by the above formula E-1 (where R 7 is a hydrogen atom) , methyl group, or methoxy group), the compound represented by formula A-21 forms a one-to-one salt with their tartaric acid derivative, and can be isolated as a crystal.
- the resulting compound represented by the above formula E-2 is a new crystalline compound, and after isolation, separation with ethyl acetate/hydrochloric acid aqueous solution, etc., subsequent freeing, and extraction yield a higher HPLC purity than before purification. (preferably HPLC purity of 95% or more).
- An exemplary method of the above purification method is as follows. First, the compound represented by Formula E-1 is added to a solution of the compound represented by Formula A-21 in a solvent such as acetonitrile and water, stirred, and after confirming dissolution, a solvent such as acetonitrile is added. The obtained slurry liquid is concentrated under reduced pressure, and the precipitated crystals are filtered by stirring the slurry liquid. The filtered crystals are washed with acetonitrile and dried under reduced pressure to obtain crystals of the compound represented by formula E-2 (crystal production step).
- a compound represented by can be obtained. More preferably, it can be carried out by the methods shown in Examples 46 to 50, for example.
- the purification of the compound represented by the above formula A-21 is not limited to the purification in this step. Therefore, in one embodiment of the present invention, the compound represented by the above formula E-1 (wherein R 7 is a hydrogen atom, a methyl group, or a methoxy a step of adding a group) to produce a crystalline compound represented by the above formula E-2 (wherein R 7 is a hydrogen atom, a methyl group, or a methoxy group); Also provided is a method for purifying a compound represented by Formula A-21, comprising the steps of isolating the compound represented by Formula A-21, and then extracting the compound represented by Formula A-21 from the isolated crystalline compound.
- the desired oligosaccharide represented by the above formula A-22 can be obtained by the method of the present invention including the above steps I-1 to I-5. Further, the oligosaccharide intermediate represented by the above formula A-22 is useful in the production of the oligosaccharide, but is not limited to the production of the oligosaccharide, and can be applied to all kinds of uses. Therefore, the present invention provides an oligosaccharide represented by the above formula A-22 and an intermediate thereof.
- the following formula A-8 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is provided.
- the following formula A-10 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is provided.
- a compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is provided.
- the following formula A-13 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is provided.
- a compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) is provided.
- the following formula A-15 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group, and R 6 is a hydrogen atom, or R 5 and R 6 form a phthalimide group together with the nitrogen atom to which they are attached.
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6
- the following formula A-17 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group, and R 6 is a hydrogen atom, or R 5 and R 6 form a phthalimide group together with the nitrogen atom to which they are attached.
- R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups
- R 5 is an aryloxycarbonyl (COOAr) group, an acetyl (Ac) group, or a 2,2,2-trichloroethoxycarbonyl (Troc) group
- R 6
- formula A-18-FF A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) or its salt is provided.
- the following formula A-18 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation).
- the following formula A-19-FF A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) or its salt is provided.
- the following formula A-19 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation).
- formula A-20-FF A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups) or its salt is provided.
- the following formula A-20 A compound represented by (wherein R 1 is a C 1 to C 6 alkyl group or a phenyl group, and the phenyl group may be substituted with 1 to 3 C 1 to C 6 alkoxy groups, M + is a sodium ion, a lithium ion, a potassium ion, or a protonated triethylamine cation).
- a biantennary glycan having an ⁇ 2,6-sialic acid structure at the non-reducing end i.e., an oligosaccharide represented by formula A-22
- a glycoprotein, etc. in particular, a sugar chain remodeling antibody or Provided are novel glycoproteins, etc., which are used as donor molecules in synthesizing the FC region-containing molecules (or antibody-drug conjugates), and novel methods for producing the same.
- the oligosaccharide represented by formula A-22 obtained by the production method of the present invention can be used to synthesize glycoproteins (particularly sugar chain remodeling antibodies or Fc region-containing molecules, or antibody-drug conjugates).
- glycoproteins particularly sugar chain remodeling antibodies or Fc region-containing molecules, or antibody-drug conjugates.
- hydrolases are used to excise heterogeneous sugar chains attached to proteins (antibodies, etc.), leaving only N-acetylglucosamine (GlcNAc) at the end, and GlcNAc is added. (hereinafter referred to as "acceptor molecule”).
- acceptor molecule N-acetylglucosamine
- donor molecule a separately prepared arbitrary sugar chain is prepared (hereinafter referred to as a "donor molecule”), and the acceptor molecule and donor molecule are linked using a glycosyltransferase. This allows the synthesis of uniform glycoproteins with arbitrary sugar chain structures.
- the oligosaccharide represented by formula A-22 produced using the novel production method of the present invention can be produced by activating the terminal structure of the homogeneous glycoprotein (especially glycoprotein). It can be used as a donor molecule when synthesizing a chain remodeling antibody or its Fc region-containing molecule.
- sugar chain means a structural unit in which two or more monosaccharides are linked through glycosidic bonds.
- a specific monosaccharide or sugar chain may be abbreviated as, for example, "GlcNAc-”.
- the oxygen atom or nitrogen atom that belongs to the glycosidic bond with another structural unit at the reducing end is not included in the abbreviation representing the sugar chain, unless there is a special definition. Displayed as not included.
- a sugar chain when described as a symbol (for example, GlcNAc, etc.), unless otherwise defined, the symbol includes up to the carbon at the reducing end and is attributed to an N- or O-glycosidic bond. N or O shall not be included in the symbol.
- glycoprotein refers to a protein in which sugar chains are bound to some of the amino acids that constitute the protein.
- the "glycoprotein” is a sugar chain remodeling antibody or its Fc region-containing molecule. Therefore, in one aspect of the present invention, the step of obtaining a sugar chain donor molecule includes the novel method for producing an oligosaccharide of the present invention, and the sugar chain donor molecule may have fucose added thereto as an N297-linked sugar chain.
- a method for producing a sugar chain remodeling antibody or an Fc region-containing molecule thereof which includes a step of reacting an antibody having core GlcNAc or an acceptor molecule that is an Fc region-containing molecule thereof.
- core GlcNAc is GlcNAc at the reducing end of the N297-linked sugar chain.
- the term "sugar chain donor molecule” refers to a molecule that plays a role in providing a sugar chain to an acceptor molecule.
- the sugar chain donor molecule is an oligosaccharide represented by formula A-22.
- the oligosaccharide represented by formula A-22 is an oligosaccharide in which R 1 is a 4-methoxyphenyl group or an isopropyl group, but the oligosaccharide is not limited thereto.
- an oligosaccharide in which R 1 is a 4-methoxyphenyl group substituted with an isopropyl group is used instead of the compound represented by formula A'-9, in which the 4-methoxyphenyl group of the compound is substituted with an isopropyl group. It can be produced by using a substituted compound (compound represented by formula A''-9) (see Example 13, Example 60, etc.).
- acceptor molecule means a molecule that receives a sugar chain from a sugar chain donor molecule.
- the "acceptor molecule” is not particularly limited as long as it is a molecule capable of receiving a sugar chain from a sugar chain donor molecule, but preferably a sugar chain-cleaved antibody or its Fc region in which most of the sugar chains have been cleaved from the antibody. More preferably, an antibody having a core GlcNAc or a molecule containing its Fc region can be mentioned.
- the sugar chain that is partially cleaved in the sugar chain-cleaved antibody is an N-linked sugar chain or an O-linked sugar chain, preferably an N-linked sugar chain.
- N-linked sugar chains are bonded to amino acid side chains of antibodies via N-glycosidic bonds
- O-linked sugar chains are bonded to amino acid side chains of antibodies via O-glycosidic bonds.
- the antibody as the "acceptor molecule” is preferably IgG, more preferably IgG1, IgG2 or IgG4.
- IgG has a well-conserved N-linked sugar chain (hereinafter referred to as "Asn297-linked sugar chain or N297-linked sugar chain”) at the 297th asparagine residue (hereinafter referred to as "Asn297 or N297”) in the Fc region of its heavy chain. ) and is known to contribute to the activity and dynamics of antibody molecules (Eon-Duval, A. et al, Biotechnol. Prog. 2012, 28, 608-622, Sanglier-Cianferani, S., Anal. Chem. 2013, 85, 715-736).
- each amino acid sequence in the constant region of IgG is well conserved, and in a report by Edelman et al. (Proc. Natl. Acad. Sci. USA, 63, 78-85, (1969)), each amino acid sequence is It is specified by the EU number (EU INDEX).
- EU number EU INDEX
- Asn297 to which an N-linked sugar chain is added in the Fc region, corresponds to position 297 in the EU number, and even if the actual amino acid position changes due to molecular fragmentation or region deletion, the EU number Amino acids are uniquely identified by numbering.
- the "acceptor molecule” is an antibody having core GlcNAc as an N297-linked sugar chain or a molecule containing its Fc region.
- Other monosaccharides or sugar chains may be added to the core GlcNAc as the N297-linked sugar chain, for example, fucose may be added. Therefore, in one aspect of the present invention, the "acceptor molecule” is an antibody having a core GlcNAc to which fucose may be added as an N297-linked sugar chain or an Fc region-containing molecule thereof.
- the step of reacting the sugar chain donor molecule with the acceptor molecule can be performed by any reaction method as long as the reaction proceeds. or reaction conditions can be used.
- the sugar chain remodeling antibody or its Fc region-containing molecule can be produced by the method shown in the following formula, for example, according to the methods described in WO2018/003983 and WO2022/050300.
- the antibody of interest (1d) is isolated between GlcNAc ⁇ 1 and 4GlcNAc in the chitobiose structure at the reducing end using a hydrolase such as wild-type Endo-S enzyme in a buffer solution (phosphate buffer, etc.) from 0°C to 40°C.
- the hydrolysis reaction of the glycosidic bonds is carried out.
- the reaction time is 10 minutes to 72 hours, preferably 1 hour to 16 hours. Wild-type Endo-S enzyme etc. is used in an amount of 0.005 mg to 10 mg, preferably 0.01 mg to 3 mg, per 100 mg of antibody (1d).
- a purification method that is appropriate for the reaction scale. It is purified by (affinity chromatography, hydroxyapatite column, cation exchange chromatography, multimode chromatography, etc.) to obtain (Fuc ⁇ 1,6)GlcNAc antibody (2d).
- step D-2 process In this step, the oligosaccharide represented by formula A-22 is reacted with the (Fuc ⁇ 1,6)GlcNAc antibody (2d) obtained in step D-1 by a transglycosylation reaction using two types of Endo enzymes.
- the target product (3d) is produced by preparing a reaction solution containing the sugar chain remodeling antibody (3d) and purifying it by an appropriate method.
- enzyme A Endo-S-like enzyme
- enzyme B Endo-M-like enzyme
- enzyme-A refers to endo- ⁇ -N-acetylglucosaminidase that uses N297-linked sugar chains of Fc-containing molecules (eg, antibodies) as substrates.
- Enzyme A includes Endo-S, Endo-S2 (EndoS-49), Endo-Si, Endo-Sd, Endo-Se, or Endo-Sz, and Endo-S variants thereof with reduced hydrolytic activity. , Endo-S2 (Endo-S49) variant, Endo-Si variant, Endo-Sd variant, Endo-Se variant, Endo-Sz variant, etc.
- Preferred enzymes A are Endo-S D233Q, Endo-S D233Q/Q303L, Endo-S D233Q/E350A, Endo-S D233Q/E350Q, Endo-S D233Q/E350D, Endo-S D233Q/E350N, Endo-S D233Q/D405A, Endo-S2 D184M, Endo-S2 T138Q, Endo-S2 D184Q, Endo-S2 D184Q/Q250L, Endo-S2 D184Q/E289Q, Endo-S2 D184M/Q250L, Endo-S2 D184M/E289Q, Endo-S2 D182Q, Endo-S2 D226Q, Endo-S2 T227Q, Endo-S2 T228Q, Endo-Si D241Q/Q311L, Endo-Si D241Q/E360Q, Endo-Si D241M, Endo-Si D24
- enzyme-B refers to endo- ⁇ -N-acetylglucosaminidase that uses the sugar chain of the sugar chain donor molecule as a substrate, in particular, the enzyme that uses the sugar chain of the sugar chain donor molecule as a substrate but does not contain N297-linked sugar chains. It refers to endo- ⁇ -N-acetylglucosaminidase that does not serve as a substrate (in other words, has low reactivity to N297-linked sugar chains, preferably extremely low reactivity).
- Enzyme B includes Endo-M, Endo-Om, Endo-CC, or Endo-Rp and Endo-M mutants, Endo-Om mutants, Endo-CC mutants, or Endo-Rp with reduced hydrolysis activity. Examples include -Rp mutants.
- Preferred enzymes B are Endo-M N175Q, Endo-M N175Q/Y217F, Endo-CC N180H, Endo-Om N194Q, Endo-Rp N172Q, Endo-Rp N172H, Endo-Rp N172A, Endo-Rp N172C, Endo -Rp N172D, Endo-Rp N172E, Endo-Rp N172G, Endo-Rp N172I, Endo-Rp N172L, Endo-Rp N172M, Endo-Rp N172P, Endo-Rp N172S , Endo-Rp N172T, Endo-Rp N172V, Endo -Rp W278F/S216V, Endo-Rp W278F/N246D, Endo-Rp W278F/D276N, Endo-Rp W278F/A310D, Endo-Rp W278F/N172D/F307Y, End
- the antibody (2d) is converted into an oligosaccharide represented by formula A-22 in a buffer solution (Tris buffer, etc.) in the presence of glycosyltransferases enzyme A (Endo-S-like enzyme) and enzyme B (Endo-M-like enzyme).
- a sugar chain transfer reaction is carried out by reacting with.
- the reaction temperature can be appropriately selected depending on the optimum temperature of the enzyme used, but is usually 15 to 50°C, preferably 25 to 40°C.
- the reaction time can be appropriately selected from 2 hours to 48 hours.
- concentration of the aqueous antibody solution can be performed according to common operations A to C described in WO2020/050406.
- the method for producing a sugar chain remodeling antibody or its Fc region-containing molecule further provides the method for producing a sugar chain remodeling antibody or its Fc region-containing molecule, in which each of the two azide groups (N 3 -) at the terminal of the compound represented by formula A-22 or It may also include a step of reacting both with a molecule having an alkyne structure.
- the reaction step may be carried out either before or after the step of reacting the sugar chain donor molecule with the acceptor molecule.
- the "molecule having an alkyne structure” may be any molecule as long as it has an alkyne structure, and includes, for example, a chemotherapeutic agent, a molecular target drug, an immune activator, a toxin, an antibacterial agent, an antiviral Mention may be made of agents, diagnostic agents, proteins, peptides, amino acids, nucleic acids, antigens, vitamins and hormones.
- any reaction method or reaction condition can be used as long as the reaction proceeds. For example, any known method ( WO2019/065964, WO2020/050406, etc.).
- step D-2 the sugar chain remodeling antibody (3d) obtained in step D-2 above and a molecule having an alkyne structure are reacted with SPAAC (strain -promoted azide-alkyne cycloaddition: J. Am. Chem. Soc. 2004, 126, 15046-15047).
- SPAAC strain -promoted azide-alkyne cycloaddition: J. Am. Chem. Soc. 2004, 126, 15046-15047.
- an antibody-drug conjugate which includes the method for producing the sugar chain remodeling antibody or its Fc region-containing molecule.
- the antibodies and drugs included in the "antibody-drug conjugate" are not limited as long as they produce the desired effect, and any antibody and drug can be used depending on the purpose.
- examples of the method for producing the antibody-drug conjugate include, but are not limited to, a method including the above-mentioned step D-1, step D-2, and SPAAC reaction.
- antibody-drug conjugate refers to a complex in which a drug is bound to an antibody via a linker.
- the "antibody drug conjugate” has the following formula (XIII): It is indicated by. m 1 ranges from 1 to 10 and indicates the number of drug bonds per antibody molecule in the antibody-drug conjugate.
- Ab represents an antibody or a functional fragment of the antibody
- L represents a linker connecting Ab and D
- D represents a drug.
- Antibodies used in the present invention include full bodies and functional fragments of antibodies.
- "Functional fragment of an antibody” is also called “antigen-binding fragment of an antibody” and means a partial fragment of an antibody that has antigen-binding activity, and includes Fab, F(ab') 2 , Fv, scFv. , diabodies, linear antibodies, and multispecific antibodies formed from antibody fragments.
- Antigen-binding fragments of antibodies also include Fab', which is a monovalent fragment of the variable region of an antibody obtained by treating F(ab') 2 under reducing conditions.
- the molecules are not limited to these molecules as long as they have the ability to bind to the antigen.
- these antigen-binding fragments include not only full-length antibody protein molecules treated with appropriate enzymes, but also proteins produced in appropriate host cells using genetically engineered antibody genes. It will be done.
- antibodies may be derived from any species, but are preferably human, rat, mouse, and rabbit. When derived from a species other than human, it is preferable to chimerize or humanize using well-known techniques. Further, in the present invention, the antibody may be a polyclonal antibody or a monoclonal antibody, but a monoclonal antibody is preferable. Monoclonal antibodies include monoclonal antibodies derived from non-human animals such as rat antibodies, mouse antibodies, rabbit antibodies, chimeric antibodies, humanized antibodies, human antibodies, functional fragments thereof, or modified bodies thereof.
- the antibodies used in the present invention are not limited as long as they have the desired effect, but include, for example, anti-HER2 antibodies, anti-HER3 antibodies, anti-DLL3 antibodies, anti-FAP antibodies, anti-CDH11 antibodies, anti-CDH6 antibodies, and anti-A33 antibodies.
- anti-CanAg antibody anti-CD19 antibody, anti-CD20 antibody, anti-CD22 antibody, anti-CD30 antibody, anti-CD33 antibody, anti-CD56 antibody, anti-CD70 antibody, anti-CD98 antibody, anti-TROP2 antibody, anti-CEA antibody, anti-Cripto antibody, anti- EphA2 antibody, anti-G250 antibody, anti-MUC1 antibody, anti-GPNMB antibody, anti-Integrin antibody, anti-PSMA antibody, anti-Tenascin-C antibody, anti-SLC44A4 antibody, anti-Mesothelin antibody, anti-ENPP3 antibody, anti-CD47 antibody, anti-EGFR antibody, anti- Examples include GPR20 antibody or anti-DR5 antibody.
- the antibodies used in the production of the antibody-drug conjugates of the present invention are obtained by immunizing animals with polypeptides that serve as antigens using methods commonly practiced in this field, and collecting and purifying the antibodies produced in vivo. You can get it by doing
- the origin of the antigen is not limited to humans, and animals can also be immunized with antigens derived from non-human animals such as mice and rats.
- antibodies applicable to human diseases can be selected by testing the cross-reactivity between antibodies that bind to the obtained foreign antigen and human antigens.
- hybridomas can be established by fusing antibody-producing cells that produce antibodies against antigens with myeloma cells, and monoclonal antibodies can also be obtained.
- the antigen can be obtained by causing a host cell to produce a gene encoding an antigen protein through genetic manipulation.
- the humanized antibodies used to produce the antibody-drug conjugates of the present invention can be prepared by known methods (for example, Proc. Natl. Acad. Sci. U.S.A., 81, 6851-6855, (1984), Nature ( 1986) 321, p. 522-525, WO90/07861).
- anti-HER2 antibodies US5821337, WO2004/008099, WO2020/050406, etc.
- anti-CD33 antibodies WO2014/057687, WO2020/050406, etc.
- anti-EphA2 antibodies WO2009/028639, WO2020/050406, etc.
- Anti-CDH6 antibody WO2018/212136, WO2020/050406, etc.
- anti-CD70 antibodies WO2004/073656, WO2007/038637, etc.
- anti-TROP2 antibodies WO2015/098099, etc.
- anti-EGFR antibodies WO1998/050433, WO2002/0927 71 etc.
- the drugs used in the present invention include, but are not limited to, pharmaceutically active compounds, such as chemotherapeutic agents, molecular target drugs, immune activators, toxins, antibacterial agents, and antivirals, as long as they have the desired effect. agents, diagnostic agents, proteins, peptides, amino acids, nucleic acids, antigens, vitamins, hormones, etc.
- Drug D has the following formula, for example: (wherein the asterisk indicates that it is bonded to linker L).
- the linker L that connects the antibody Ab and the drug D has the following formula: -Lb-La-Lp-Lc-* (Here, an asterisk indicates binding to drug D).
- Lp exhibits or does not have a linker consisting of an amino acid sequence that is cleavable in the target cell, and specific examples include -GGFG-, -GGPI-, -GGVA-, -GGFM-, -GGVCit-, -GGFCit-, -GGICit-, -GGPL-, -GGAQ- or -GGPP-.
- Lb represents a spacer that connects La and Ab sugar chains or remodeled sugar chains, and specific examples thereof include, for example, or (In the structural formula of Lb shown above, the asterisk indicates that it is bonded to La, and the wavy line indicates that it is bonded to the sugar chain of Ab or a remodeled sugar chain.) .
- B is a 1,4-phenyl group, 2,5-pyridyl group, 3,6-pyridyl group, 2,5-pyrimidyl group or 2,5-thienyl group.
- room temperature is 15°C to 35°C.
- Silica gel chromatography uses Biotage Sfar HC D (20 ⁇ m, manufactured by Biotage), and reverse phase column chromatography uses Universal Column ODS Premium 30 ⁇ m L size (manufactured by Yamazen Co., Ltd.) and Inject colu. mn ODS L size (manufactured by Yamazen Co., Ltd.), preparative HPLC was carried out using Agilent Preparative HPLC System (manufactured by Agilent Technology). The preparative column used was XBridge Prep OBD (5 ⁇ m, C18, 130 ⁇ , 250 ⁇ 30 mm, manufactured by Waters).
- Ethyl acetate (2.4 L) and water (600 mL) were added to the acetonitrile layer to separate the layers to obtain an organic layer A and an aqueous layer.
- a mixed solution of ethyl acetate (1.5 L) and tetrahydrofuran (1.5 L) was added to the aqueous layer again to separate the layers to obtain an organic layer B and an aqueous layer.
- Organic layers A and B were mixed, washed with saturated brine (600 mL), and then concentrated under reduced pressure until the liquid volume reached 1.5 L (precipitation of crystals was confirmed during the concentration stage).
- ethyl acetate (4.5 L) was added, and the mixture was concentrated again until the liquid volume reached 3 L.
- the reaction solution was cooled to 10° C., and 1-methylpiperazine (60.97 g, 608.73 mmol) was added. After stirring at 35°C for 18 hours, completion of the reaction was confirmed by HPLC, and the mixture was cooled to 0°C. After adjusting the pH to 6.36 with 6N hydrochloric acid (480 mL), it was diluted with heptane (375 mL) and the organic layer and aqueous layer were separated. The organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution (450 mL) and water (450 mL), and then concentrated under reduced pressure until the liquid volume reached 450 mL.
- 1-methylpiperazine 60.97 g, 608.73 mmol
- Silica gel 60N (manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 150 g) was added to this solution, stirred for 1.5 hours, and then filtered. The silica gel was washed with dichloromethane (1.5 L), and the filtrate was concentrated under reduced pressure to a volume of 450 mL. Furthermore, dichloromethane (1.5 L) was added and concentrated until the liquid volume became 450 mL. -(2,2,2-trichloroethanimidoyl)-D-glycero-hexopyranose (compound represented by formula C-6) was obtained as a dichloromethane solution. This product was used as it was in the next step.
- Trimethylsilyl trifluoromethanesulfonate (10.41 g, 46.83 mmol) was added dropwise to this suspension over 20 minutes, followed by stirring for 3 hours. After confirming the completion of the reaction by HPLC, triethylamine (23.69 g, 234.13 mmol) was added. After filtering the suspension, it was washed with ethyl acetate (2.8 L), and the filtrate was concentrated under reduced pressure until the liquid volume became 1.4 L. Furthermore, ethyl acetate (4.2 L) was added and concentrated until the liquid volume became 1.4 L, and the same operation was repeated once more.
- Methyl isobutyl ketone (2.1 L) was added to the obtained crude compound represented by formula C-8 (350.00 g) and dissolved at 50°C, and then ethylcyclohexane (1.4 L) was added over 1 hour. dripped.
- the reaction solution was cooled to 25° C., and acetic acid (1.76 g, 29.29 mmol) and ethyl acetate (300 mL) were added in this order. This solution was washed twice with a 1% aqueous sodium chloride solution (300 mL), and then concentrated under reduced pressure until the liquid volume became 90 mL. Add ethyl acetate (450 mL) and concentrate again until the liquid volume reaches 90 mL. Add acetonitrile (450 mL) and concentrate until the liquid volume reaches 90 mL.
- 1-methylimidazole (12.03 g, 146.47 mmol) was added and concentrated until the liquid volume was 90 mL, and 4-methoxyphenyl 3,6-di-O-benzyl-4-O- ⁇ 4,6- O-Benzylidene-3-O-[(naphthalen-2-yl)methyl]- ⁇ -D-glucopyranosyl ⁇ -2-deoxy-2-(1,3-dioxo-1,3-dihydro-2H-isoindole- 2-yl)- ⁇ -D-glucopyranoside (compound represented by formula C-10) was obtained as a toluene solution containing 1-methylimidazole. This product was used as it was in the next step.
- Example 8 4-methoxyphenyl 3,6-di-O-benzyl-4-O- ⁇ 4,6-O-benzylidene-3-O-[(naphthalen-2-yl)methyl]-2-O-(trifluoromethanesulfonyl )- ⁇ -D-glucopyranosyl ⁇ -2-deoxy-2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)- ⁇ -D-glucopyranoside (represented by formula C-11) compound (wherein X1 is a Tf group)
- Trifluoromethanesulfonic anhydride (16.53 g, 58.59 mmol) was added dropwise to this solution over 1 hour, followed by stirring for 30 minutes. After confirming the completion of the reaction by HPLC, water (300 mL) was added and the mixture was separated into an organic layer and an aqueous layer. The organic layer was washed twice with water (300 mL) and once with a saturated aqueous sodium chloride solution (150 mL), and then concentrated under reduced pressure until the liquid volume became 90 mL.
- Tetrahydrofuran (300 mL) was added to the separated organic layer, and the mixture was concentrated under reduced pressure until the liquid volume became 150 mL. Tetrahydrofuran (300 mL) was added, and the mixture was concentrated again until the liquid volume became 90 mL, and the internal temperature was adjusted to 45°C.
- reaction solution was cooled to 0° C., ethyl acetate (90 mL) and water (60 mL) were added, and 6N hydrochloric acid was added under strong stirring until the pH reached 7. After separating the organic layer and the aqueous layer, the organic layer was washed with water (60 mL) and saturated brine (30 mL). This solution was concentrated under reduced pressure until the liquid volume reached 12 mL.
- Acetic acid (0.72 g, 11.95 mmol) was added to this solution and filtered. After washing Molecular Sieve 4A with ethyl acetate (90 mL), water (60 mL) was added and the mixture was separated. After washing the organic layer twice with water (60 mL), it was concentrated under reduced pressure until the liquid volume reached 12 mL. Add toluene (30 mL), concentrate again until the liquid volume reaches 12 mL, add toluene (18 mL) and silica gel 60N (spherical, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m) (9 g), and stir at 25 °C for 30 minutes. did.
- Example 12 4-methoxyphenyl 3,6-di-O-benzyl-2-deoxy-4-O- ⁇ 2,4-di-O-benzyl-3-O-[(naphthalen-2-yl)methyl]- ⁇ - D-mannopyranosyl ⁇ -2-(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)- ⁇ -D-glucopyranoside (compound represented by formula A-4)
- borane-tetrahydrofuran complex (0.91 mol/L tetrahydrofuran solution) (18.06 mL, 16.43 mmol) and copper(II) trifluoroacetate (0.59 g, 1.64 mmol) were added for 3 hours. Stirred. After confirming the completion of the reaction by HPLC, methanol (5.5 mL) was added, and the mixture was further stirred for 30 minutes. This solution was filtered, and after washing the molecular sieve 4A with ethyl acetate (110 mL), 0.5N hydrochloric acid (55 mL) was added and stirred for 30 minutes.
- the obtained organic layer was concentrated under reduced pressure to 490 mL (precipitation of crystals was confirmed during concentration), and heptane (735 mL) was added dropwise.
- the obtained slurry liquid was cooled to 0° C.-5° C., stirred at the same temperature for 1 hour, and precipitated crystals were filtered.
- the filtered crystals were washed with a mixture of ethyl acetate and heptane (39/118 mL) at 0°C to 5°C and dried under reduced pressure at 40°C to give 4-O-acetyl-3,6-di-O-benzyl.
- N-methylimidazole (3.40 g, 41.39 mmol) and 2,2,2-trifluoro-N-phenylacetimidoyl chloride (8.20 g, 39.51 mmol) were sequentially added at 0° C. under nitrogen, The mixture was stirred at the same temperature for 18 hours. After confirming the completion of the reaction by HPLC, the reaction solution was filtered and washed with dichloromethane (100 mL). The filtrate was filtered through a neutral silica gel pad (silica gel 60N, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 60 g) filled with dichloromethane, and 100 mL portions were collected.
- a neutral silica gel pad sica gel 60N, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 60 g
- the silica gel pad was washed with dichloromethane (400 mL, 100 mL fractions) and ethyl acetate/dichloromethane (1:4, 400 mL, 100 mL fractions), and the selected fractions were concentrated until the liquid volume reached 40 mL. Add toluene (200 mL) and concentrate again until the liquid volume reaches 40 mL. Add toluene (200 mL) and concentrate until the liquid volume reaches 40 mL.
- nBuOH 200 mL was added dropwise to this concentrated solution over 30 minutes, and the mixture was stirred at room temperature for 1 hour. Thereafter, the reaction solution was concentrated under reduced pressure to a liquid volume of 80 mL, and stirred at room temperature overnight. The suspension was filtered, the crystals were washed with nBuOH (40 mL) at 0°C, and dried under reduced pressure at 40°C to obtain allyl ⁇ -D-galactopyranoside (compound represented by G-0) ( 8.41 g, yield 34.4%) was obtained as white crystals.
- the temperature of the obtained concentrate was adjusted to 15°C, water (20 mL) and ethyl acetate (722 mL) were added, and after stirring at 25°C for 1 hour, the slurry liquid was cooled to 0°C-5°C, and The mixture was stirred at room temperature for 2 hours.
- reaction solution was cooled to 15° C.
- acetic anhydride (12.05 g, 118.03 mmol) was added, and the mixture was stirred at the same temperature for 47 hours.
- methanol 40 mL was added, the temperature was adjusted to 25°C, and the mixture was stirred at the same temperature for 2 hours.
- sodium acetate (0.97 g, 11.82 mmol) was added, and the mixture was further stirred at the same temperature for 1 hour.
- the reaction solution was concentrated under reduced pressure to 120 mL, and after cooling to 0°C-5°C, ethyl acetate (403 mL) and water (161 mL) were added, and while stirring at 0°C-5°C, triethylamine was added to adjust the pH to 7. Adjusted to 0.
- the organic layer obtained by liquid separation was washed twice with 10% brine (121 mL) and concentrated under reduced pressure to 200 mL. Ethyl acetate (605 mL) was added to the concentrated solution, and the mixture was again concentrated under reduced pressure to 200 mL.
- N-methylimidazole 11.03 g, 134.33 mmol
- the reaction solution was filtered and washed with dichloromethane (88 mL) to obtain a filtrate.
- the resulting filtrate was cooled to 0°C, cold water (440 mL) was added, and while stirring at 0°C to 5°C, triethylamine was added to adjust the pH to 7.5. After stirring at 0° C.-5° C.
- the obtained filtrate was concentrated under reduced pressure (until the weight became 59 g), and cyclopentyl methyl ether (23 mL) was added.
- the temperature of the solution was adjusted to 20°C, heptane (156 mL) was added dropwise over 15 minutes, and the mixture was stirred at the same temperature for 1 hour.
- heptane 312 mL was added dropwise over 1 hour, the precipitated crystals were filtered, the filtered crystals were washed with heptane (78 mL), and dried under reduced pressure at 35°C.
- cyclopentyl methyl ether was added to the obtained mixed solution to adjust the total volume to 350 mL (cyclopentyl methyl ether mixed solution of the compound represented by formula G-3 and the compound represented by formula G-8).
- Cyclopentyl methyl ether (525 mL) and Molecular Sieves 4A powder (powder particle size 10 ⁇ m or less) (17.5 g) were added to a separate container, and after cooling to -60°C, trimethylsilyl trifluoromethanesulfonate (4.2 mL, 23.24 mmol) was added. added.
- Example 27-1 4-O-acetyl-2,3-di-O-benzoyl-6-O-[4,7,8,9-tetra-O-acetyl-3,5-dideoxy-5-(diacetylamino)-1- Methyl-D-glycero- ⁇ -D-galacto-non-2-uropyranosyl]-D-galactopyranose (compound represented by formula G-12)
- Toluene (383 mL), chloroform (197 mL), and neutral silica gel (Silica Gel 60N, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 145 g) were added to the concentrated solution and stirred for 30 minutes to allow the product to be adsorbed on the silica gel. After that, it was filtered. After washing the silica gel solid phase containing the product with a mixture of toluene and chloroform (2/1, 4350 mL) (discard the filtrate from washing), desorb the target substance from the silica gel solid phase containing the product with ethyl acetate (870 mL). I let it happen.
- SH silica gel (29.00 g) was added to the obtained ethyl acetate solution, and after stirring for 30 minutes, it was filtered and washed with ethyl acetate (145 mL) to obtain an ethyl acetate solution containing the target product.
- the obtained solution was concentrated under reduced pressure to 58 mL, toluene (145 mL) was added, and the solution was concentrated under reduced pressure again to 58 mL.
- the concentrated solution was purified with a silica gel column (silica gel 60N, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 290 g, mobile phase hexane/ethyl acetate 50/50 to 30/70), and the selected fractions were concentrated under reduced pressure to 29 mL.
- Ethyl acetate (290 mL) and activated carbon (Shirasagi A, 14.5 g) were added to the concentrated solution, and after stirring for 30 minutes, it was filtered and washed with ethyl acetate (87 mL) to obtain a purified ethyl acetate solution containing the target product.
- Ta silica gel column
- Example 27-2 4-O-acetyl-2,3-di-O-benzoyl-6-O-[4,7,8,9-tetra-O-acetyl-3,5-dideoxy-5-(diacetylamino)-1- Methyl-D-glycero- ⁇ -D-galacto-non-2-uropyranosyl]-D-galactopyranose (compound represented by formula G-12) Instead of Example 27-1, a compound represented by the above formula G-12 was synthesized as in this example.
- the obtained organic layer was washed with 5% brine (25 mL), purified Shirasagi (2.0 g) was added to the organic layer, stirred for 1 hour, filtered, and washed with ethyl acetate (50 mL).
- the obtained filtrate was concentrated under reduced pressure to 6.5 mL, ethyl acetate (25 mL) was added, and the mixture was again concentrated under reduced pressure to 6.5 mL for the purpose of dehydration.
- 2-propanol 100 mL was added, seed crystals were inoculated, and the mixture was stirred for 16 hours. After confirming the precipitation of crystals, the resulting slurry was concentrated under reduced pressure to 30 mL.
- Example 28 4-O-acetyl-2,3-di-O-benzoyl-6-O-[4,7,8,9-tetra-O-acetyl-3,5-dideoxy-5-(diacetylamino)-1- Methyl-D-glycero- ⁇ -D-galacto-non-2-uropyranosyl]-1-O-(2,2,2-trifluoro-N-phenylethanimidoyl)-D-galactopyranose (formula A-16 )
- the filtrate was filtered through a neutral silica gel pad (silica gel 60N, Kanto Chemical Co., Ltd., particle size: 40-50 ⁇ m, 60 g) filled with dichloromethane, and 100 mL portions were collected.
- the silica gel pad was washed with ethyl acetate/dichloromethane (1:9, 1000 mL, 200 mL each), and the selected fractions were concentrated under reduced pressure.
- 5% aqueous sodium bicarbonate 400 mL was added to the reaction mixture to separate the mixture. 20% brine (200 mL) was added to the organic layer to separate the layers. The organic layer was concentrated under reduced pressure to 80 mL, toluene (400 mL) was added, and the mixture was concentrated under reduced pressure to a liquid volume of 80 mL. Toluene (400 mL) was added again, and the mixture was concentrated under reduced pressure to a liquid volume of 80 mL.
- Example 30 A toluene solution (78.9 mmol) of 2-O-acetyl-3,4,6-tri-O-benzyl-D-mannopyranose (compound represented by formula A-2) was added to a 1 L flask, and trichloroacetonitrile ( 12 mL, 118 mmol) and DBU (119 ⁇ L, 0.789 mmol) were added. Stirred at 0° C. for 2 hours under nitrogen.
- 2,3-dichloro-5,6-dicyano-p-benzoquinone (4.63 g, 20.4 mmol) was added at ⁇ 20° C. under nitrogen, and the mixture was stirred at the same temperature for 6 hours. After confirming the completion of the reaction by HPLC, an aqueous solution of sodium sulfite (1.17 g, 9.25 mmol) dissolved in water (10 mL) was added, and the mixture was stirred overnight.
- Dichloromethane 300 mL was added, and after separation and washing with an aqueous solution of sodium sulfite (4 g) and sodium hydrogen carbonate (4 g) dissolved in water (200 mL), the organic layer was concentrated under reduced pressure to 60 mL, and ethyl acetate (300 mL) was added. added. After washing the organic layer with 5% sodium bicarbonate solution (200 mL) and 20% brine (100 mL), it was concentrated under reduced pressure to 40 mL, toluene (400 mL) was added, and the mixture was concentrated under reduced pressure to 40 mL.
- silica gel 60N manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 60 g
- heptane 40 mL was added dropwise over 30 minutes to adsorb the target product onto the silica gel, which was then filtered. After washing the silica gel with toluene/heptane (7/2, 400 mL) (the filtrate was discarded), the target product was desorbed with ethyl acetate/toluene (1/1, 700 mL).
- a compound represented by formula A-5 was synthesized from a compound represented by formula A-4 by changing the reaction conditions.
- the table below shows each reaction condition and the yield of the compound represented by formula A-5 (measured by HPLC).
- ⁇ Entry 1 The reaction proceeded with a moderate yield under the conditions of the conventional method.
- ⁇ Entry 2 The reaction proceeded with a high yield by using HFIP.
- - Entries 3 and 4 Deprotection by acid and hydrogenolysis resulted in low yields.
- Trimethylsilyl trifluoromethanesulfonate (0.683 mL, 3.78 mmol) was added dropwise at ⁇ 20° C. under nitrogen over 1 hour, and the mixture was stirred at the same temperature for 1 hour.
- triethylamine (1.06 mL, 7.56 mmol) was added and stirred at room temperature for 30 minutes.
- the reaction solution was filtered through Celite and washed with acetonitrile (178 mL). The filtrate was concentrated under reduced pressure to obtain a concentrated residue (the concentrated residue was divided into two parts: 12.8 g of raw material and 5.0 g).
- the obtained organic layer was concentrated under reduced pressure to 55 mL, then toluene (693 mL) was added and concentrated under reduced pressure again to 55 mL.
- Toluene (97 mL) and dichloromethane (42 mL) were added, and silica gel 60N (manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 83 g) was added.
- Heptane (166 mL) was added dropwise over 30 minutes to adsorb the target product onto silica gel, which was then filtered.
- N-methylimidazole 125 ⁇ L, 1.57 mmol
- 2,2,2-trifluoro-N-phenylacetimidoyl chloride 250 ⁇ L, 1.57 mmol
- the reaction solution was filtered through a neutral silica gel pad (silica gel 60N, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 84 g) filled with dichloromethane.
- Trimethylsilyl trifluoromethanesulfonate (392 ⁇ L, 2.16 mmol) was added dropwise over 5 minutes at ⁇ 7° C. under nitrogen, and the mixture was stirred at the same temperature for 1 hour. After confirming the completion of the reaction by HPLC, triethylamine (802 ⁇ L, 5.76 mmol) was added and stirred at room temperature for 30 minutes. The reaction solution was filtered through Celite and washed with acetonitrile (283 mL).
- the filtrate was concentrated under reduced pressure to 56 mL, and acetonitrile (283 mL) and silica gel 120RP-18 for reverse phase (manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 85 g) were added.
- Water (254 mL) was added dropwise over 30 minutes to adsorb the target product onto the solid phase, which was then filtered. It was washed with acetonitrile/water (4/3, 283 mL) and acetonitrile/water (3/1, 848 mL) in this order (the filtrate was discarded), and the target product was desorbed with acetonitrile (1.13 L).
- Triisopropylsilyl trifluoromethanesulfonate (973 ⁇ L, 3.63 mmol) was added dropwise over 5 minutes at ⁇ 62° C. under nitrogen, and the mixture was stirred at the same temperature for 8 hours. Since completion of the reaction could not be confirmed by HPLC, triisopropylsilyl trifluoromethanesulfonate (486 ⁇ L, 1.81 mmol) was added dropwise over 5 minutes, and the mixture was stirred at the same temperature for 3 hours.
- the filtrate was concentrated under reduced pressure to 55 mL, and acetonitrile (277 mL) and silica gel 120RP-18 for reverse phase (manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 83.1 g) were added.
- Water (249 mL) was added dropwise over 30 minutes to adsorb the target substance on the solid phase, and then filtered. After washing the solid phase with acetonitrile/water (4/3, 277 mL) and acetonitrile/water (3/1, 831 mL) in this order (discard the washing solution), desorb the target substance from the solid phase with acetonitrile (1.1 L). I let it happen.
- Heptane (94 mL) was added dropwise over 30 minutes to adsorb the target product on the solid phase, and then filtered. After washing the solid phase with toluene/heptane (7/3, 626 mL) (the washing liquid was discarded), the target product was desorbed from the solid phase with ethyl acetate/toluene (1/2, 1.1 L).
- the filtrate was concentrated under reduced pressure to 70 mL, acetonitrile (348 mL) was added, and the mixture was concentrated again under reduced pressure to 70 mL.
- Acetonitrile (348 mL) and silica gel 120RP-18 for reverse phase were added.
- Water (313 mL) was added dropwise over 30 minutes to adsorb the target product onto the solid phase, and then filtered.
- 2,2,2-Trichloroethyl chloroformate (44 ⁇ L, 0.325 mmol) was added dropwise over 10 minutes, followed by stirring for 3 hours. After confirming the completion of the reaction by HPLC, ethyl acetate (2 mL) was added, and the mixture was washed twice with water (2 mL). The organic layer was washed with 20% brine (1 mL), dried over sodium sulfate, filtered, and concentrated.
- a 3M aqueous lithium hydroxide solution (7.9 mL) was added at room temperature under argon, and the mixture was stirred at the same temperature for 1 hour. After confirming the completion of the reaction by HPLC, 25% saline (31 mL) was added and the mixture was separated. At this time, white insoluble matter remained in the organic layer. Furthermore, 25% saline (31 mL) was added to the organic layer to separate the layers.
- Acetic anhydride (1.1 mL) was added under argon at an external temperature of 4°C, and the mixture was stirred at the same temperature for 30 minutes. After confirming the completion of the reaction by HPLC, the reaction solution was concentrated under reduced pressure. Tetrahydrofuran (62 mL), 25% brine (31 mL) and water (16 mL) were added to the concentrated residue to separate the layers. At this time, white insoluble matter remained in the organic layer. Further, 25% brine (31 mL) and water (16 mL) were added to the organic layer to separate the layers.
- Example 46 The compound represented by formula A-21 was purified according to Synthesis Scheme 5 below.
- the compound shown in the lower left below has the formula E-1: This is an example of a compound in which "R 7 " in the compound represented by (in the formula, R 7 is a hydrogen atom, a methyl group, or a methoxy group) is methyl. [Synthesis scheme 5]
- 11-azido-3,6,9-trioxaundecane-1-amine (compound represented by formula A-21) (10.0 g, 45.82 mmol, 94.3% HPLC purity) in acetonitrile (24 mL) and water
- the obtained slurry liquid was concentrated under reduced pressure to 200 mL, the slurry liquid was stirred at 25°C for 30 minutes, and the precipitated crystals were filtered.
- the filtered crystals were washed with acetonitrile (30 mL) and dried under reduced pressure at 40°C to obtain 11-azido-3,6,9-trioxaundecane-1-amine (-)-di-p-toluoyl-L-.
- Tartrate (compound represented by formula E-2-PTTA) (24.40 g, yield 88.0%, HPLC purity 99.2%) was obtained as white crystals (melting point 152° C.).
- the slurry liquid was stirred at 25° C. for 30 minutes, and the precipitated crystals were filtered.
- the filtered crystals were washed with acetonitrile (15 mL) and dried under reduced pressure at 40°C to obtain 11-azido-3,6,9-trioxaundecane-1-amine (-)-dibenzoyl-L-tartrate (formula A compound represented by E-2-BZTA (10.6 g, yield 80%) was obtained as white crystals (melting point 131°C).
- Example 47 11-azido-3,6,9-trioxaundecane-1-amine (-)-di-p-toluoyl-L-tartrate obtained in Example 47 (compound represented by formula E-2-PTTA)
- Concentrated hydrochloric acid (2.41 g, 23.82 mmol) was added to a solution of (12.0 g, 19.85 mmol) in ethyl acetate (120 mL) and water (18 mL), and the mixture was stirred at 25°C and then separated.
- the resulting aqueous layer was washed twice with ethyl acetate (120 mL), and after adjusting the pH to 11 with a 10N aqueous sodium hydroxide solution (2.15 mL, 21.50 mmol), sodium chloride (0.6 g) was added and dissolved. .
- Dichloromethane (120 mL) was added, stirred, and then separated to obtain an organic layer. Furthermore, dichloromethane (120 mL) was added to the aqueous layer, and after stirring, the layers were separated, and the resulting organic layers were combined. The combined organic layers were concentrated under reduced pressure to 12 mL, acetonitrile (120 mL) was added, and the mixture was concentrated under reduced pressure to 12 mL.
- the fraction containing the target product is concentrated under reduced pressure and then lyophilized to produce 4-methoxyphenyl N-(2- ⁇ 2-[2-(2-azidoethoxy)ethoxy]ethoxy ⁇ ethyl)-5-acetyl-neuramamide.
- 5% aqueous sodium bicarbonate 600 mL was added to the reaction solution to separate the mixture. 20% brine (300 mL) was added to the organic layer to separate the layers. The organic layer was concentrated under reduced pressure to 120 mL, toluene (600 mL) was added, and the mixture was concentrated under reduced pressure to a liquid volume of 120 mL. Toluene (600 mL) was added again, and the mixture was concentrated under reduced pressure to a liquid volume of 120 mL.
- a toluene solution (118.44 mmol) of 2-O-acetyl-3,4,6-tri-O-benzyl-D-mannopyranose (compound represented by formula A-2) was added to a 1 L flask, and trichloroacetonitrile ( 25.6 g, 178 mmol) and DBU (180 ⁇ L, 1.18 mmol) were added. Stirred at 0° C. for 6 hours under argon.
- 2,3-dichloro-5,6-dicyano-p-benzoquinone (6.95 g, 31.6 mmol) was added at ⁇ 20° C. under argon, and the mixture was stirred at the same temperature for 19 hours.
- an aqueous solution of sodium sulfite (1.75 g) dissolved in water (15 mL) was added, and the mixture was stirred at 0° C. for 3 hours.
- Toluene 120 mL was added, followed by silica gel 60N (90 g). While stirring, heptane (60 mL) was added dropwise over 1 hour to adsorb the target product onto silica gel, which was then filtered. After washing the silica gel with toluene/heptane (7/2, 600 mL) (the filtrate was discarded), the target product was desorbed with ethyl acetate/toluene (1/1, 1350 mL).
- silica gel 120RP-18 for reverse phase (manufactured by Kanto Kagaku, particle size 40-50 ⁇ m, 180 g) was added. While stirring, water (240 mL) was added dropwise over 1 hour to adsorb the target product onto the solid phase, which was then filtered. After washing the solid phase with acetonitrile/water (20/8, 1.68 L) (the filtrate was discarded), the target product was desorbed with ethyl acetate/acetonitrile (1/1, 1.2 L).
- dichloromethane (240 mL) and molecular sieve 4A powder (10 ⁇ m or less, 21 g) were added, and the mixture was cooled to 0°C.
- DBU (5.1 g, 33.4 mmol)
- 2,2,2-trifluoro-N-phenylacetimidoyl chloride (6.4 g, 30.6 mmol) were added at the same temperature under argon and stirred for 3 hours. .
- the mixture was filtered and washed with cooled dichloromethane (120 mL).
- the filtrate was filtered through a neutral silica gel pad (silica gel 60N, manufactured by Kanto Kagaku, particle size: 40-50 ⁇ m, 120 g) filled with dichloromethane (the filtrate was separated).
- the silica gel pad was washed with 10% ethyl acetate/dichloromethane (840 mL and 180 mL each), and the main distillate was concentrated under reduced pressure to 90 mL.
- the silica pad was washed with 5% ethyl acetate/dichloromethane (400 mL) at 0-5° C. (the filtrate was divided into 4 fractions). The selected fractions were mixed, concentrated to dryness to 40 mL, added toluene (100 mL), and concentrated under reduced pressure again to 40 mL to give 4-O-acetyl-3,6-di-O-benzyl-2-deoxy-2.
- Acetonitrile (255 mL) and silica gel 120RP-18 for reverse phase were added. While stirring, water (90 mL) was added dropwise over 1 hour to adsorb the target product onto the solid phase, which was then filtered. It was washed with acetonitrile/water (20/6, 390 mL) (the filtrate was discarded), and the target product was desorbed with ethyl acetate/acetonitrile (1/2, 675 mL).
- a dichloromethane solution (15 mL) of t-butyldimethylsilyl trifluoromethanesulfonate (2.55 mL, 11.13 mmol) was added dropwise at ⁇ 62° C. under argon over 2 hours, and the mixture was stirred at the same temperature for 2 hours.
- a dichloromethane solution (7.5 mL) of t-butyldimethylsilyl trifluoromethanesulfonate (1.27 mL, 5.55 mmol) was added dropwise over 1 hour, and the mixture was stirred at the same temperature for 2 hours.
- the desorption solution was concentrated under reduced pressure to 60 mL, isopropyl acetate (327 mL) was added, and the mixture was concentrated under reduced pressure to 65 mL.
- Tetrahydrofuran (131 mL) and fumaric acid (7.21 g, 62.11 mmol) were added, and after confirming complete dissolution, isopropyl acetate (654 mL) was added and stirred at an internal temperature of around 21° C. for 2 hours. Seed crystals were inoculated and stirred overnight at the same temperature.
- the slurry liquid was cooled to 3° C., and after stirring for 3 hours, heptane (131 mL) was added dropwise over 4 hours, and the mixture was stirred overnight.
- the obtained organic layer was concentrated under reduced pressure to 54 mL, and acetonitrile (216 mL) and silica gel 120RP-18 for reverse phase (manufactured by Kanto Kagaku, particle size 40-50 ⁇ m, 81 g) were added. While stirring, water (95 mL) was added dropwise over 1 hour to adsorb the target product onto the solid phase, which was then filtered. After washing with acetonitrile/water (10/3.5, 364 mL) (the washing liquid was discarded), the target product was desorbed from the solid phase with acetonitrile/ethyl acetate (2/1, 1215 mL).
- the desorption solution was concentrated under reduced pressure to 54 mL, toluene (270 mL) was added, and concentrated under reduced pressure to 54 mL to obtain isopropyl 3,6-di-O-benzyl-2-deoxy-2-[(phenoxycarbonyl)amino]- ⁇ .
- Acetic anhydride (12.8 mL) was added dropwise over 1 hour under argon at an external temperature of 0-5°C, and the mixture was stirred at the same temperature for 1 hour. Thereafter, triethylamine (9.44 mL) and acetic anhydride (4.25 mL) were added, and after confirming the completion of the reaction by HPLC, methanol (122 mL) was added and stirred at 0-5° C. overnight. DMAP (9.2 mg) was added, and after stirring at the same temperature for 1 hour, the reaction solution was concentrated under reduced pressure to 72 mL. Acetonitrile (243 mL) was added to the concentrated residue, and the mixture was concentrated under reduced pressure to 72 mL.
- Depressurization ⁇ argon replacement was repeated three times, pre-treated product ASCA-2 (manufactured by N.E. Chemcat, 13.5 g) was added, pressure reduction ⁇ argon replacement was repeated three times, and hydrogen pressurization ⁇ depressurization was repeated three times. .
- the mixture was strongly stirred for 4 hours at an external temperature of 40° C. and a hydrogen pressure of 0.5 MPa. After confirming the completion of the reaction by HPLC, the reaction solution was filtered under reduced pressure in a glove box purged with argon, and the filtrate was washed with degassed methanol (180 mL).
- Diisopropylethylamine (2.4 mL) was added to the filtrate, and the mixture was concentrated under reduced pressure to 32 mL.
- the above operation on a 2.8 mmol scale was repeated three times, and the resulting solutions were combined to obtain 96 mL (equivalent to 8.4 mmol) of a solution.
- Acetonitrile (270 mL) was added to the obtained solution, and the solution was dehydrated and concentrated under reduced pressure to 96 mL.
- ASCA-2 was pretreated using the following method. After cooling a slurry of ASCA-2 (31.2 g) in DMF (54 mL) to 0-5° C. under argon, purified water (13.5 mL) and concentrated hydrochloric acid (13.5 mL) were added dropwise. After stirring at 20-30°C for 1 hour, the mixture was filtered under argon and washed with purified water (594 mL) to obtain pretreated product ASCA-2 (40.5 g).
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Medicinal Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Immunology (AREA)
- Saccharide Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
(1)α2,6-シアリル部位を有する複合型11糖グリカンの全合成(非特許文献3)
(2)α2,6-シアリル部位を有するイムノグロルビンG13糖ペプチドの全合成(非特許文献4)
(3)コアフコースを含むα2,6-シアリル12糖N-結合型糖鎖の全合成(非特許文献5)
(4)3位がフッ素化されたα2,6-シアリル10糖オリゴ糖鎖の全合成(非特許文献6)
(5)非対称に重水素化されたα2,6-シアリル2分岐型11糖オリゴ糖鎖並びに4分岐型17糖オリゴ糖鎖の全合成(非特許文献7)
以下の式A-22:
(工程I-1)式A-3:
(工程I-2)前記式A-8で示される化合物を、以下の式A-9:
(工程I-3)前記式A-11で示される化合物を、以下の式A-12:
(工程I-4)前記式A-15で示される化合物を、以下の式A-16:
(工程I-5)前記式A-20で示される化合物を、以下の式A-21:
を含む、方法。
[2]
以下の式A-4:
[3]
前記フルオラスアルコールが、ヘキサフルオロ-2-プロパノール(HFIP)、2,2,2-トリフルオロエタノール(TFE)、2,2,3,3,4,4,5,5-オクタフルオロ-1-ペンタノール、ノナフルオロ-tert-ブチルアルコール及びこれらの組み合わせからなる群から選択される、[2]に記載の方法。
[4]
前記反応が、-35℃~70℃で行われる、[2]又は[3]に記載の方法。
[5]
前記反応が、-30℃~-10℃で行われる、[2]又は[3]に記載の方法。
[6]
前記工程I-2において、前記式A-10で示される化合物を、パーフルオロカルボン酸のアルキルエステルの存在下で、強塩基と反応させることにより、前記式A-11で示される化合物を生成することを含む、[1]~[5]のいずれか一項に記載の方法。
[7]
前記パーフルオロカルボン酸のアルキルエステルが、トリフルオロ酢酸メチル、トリフルオロ酢酸エチル、トリフルオロ酢酸プロピル、トリフルオロ酢酸イソプロピル、トリフルオロ酢酸ブチル、ペンタフルオロプロピオン酸メチル、ペンタフルオロプロピオン酸エチル、ペンタフルオロプロピオン酸プロピル、ぺンタフルオロプロピオン酸イソプロピル、ぺンタフルオロプロピオン酸ブチル、ヘプタフルオロ酪酸メチル、ヘプタフルオロ酪酸エチル、ヘプタフルオロ酪酸プロピル、ヘプタフルオロ酪酸イソプロピル、ヘプタフルオロ酪酸ブチル、ノナフルオロ吉草酸メチル、ノナフルオロ吉草酸エチル、ノナフルオロ吉草酸プロピル、ノナフルオロ吉草酸イソプロピル、ノナフルオロ吉草酸ブチル、ウンデカフルオロカプロン酸メチル、ウンデカフルオロカプロン酸エチル、ウンデカフルオロカプロン酸プロピル、ウンデカフルオロカプロン酸イソプロピル、又はウンデカフルオロカプロン酸ブチルである、[6]に記載の方法。
[8]
前記強塩基が、金属アミドのナトリウム塩、リチウム塩、及びカリウム塩;C1~C20アルコキシドのナトリウム塩、リチウム塩、カリウム塩、セシウム塩、及びバリウム塩;水素化ナトリウム、水素化カリウム、水素化リチウム、ブチルリチウム、炭酸カリウム、炭酸ナトリウム、炭酸セシウム、炭酸リチウム、リン酸カリウム、リン酸ナトリウム、リン酸セシウム、リン酸リチウム、ジアザビシクロウンデセン(DBU)、ジアザビシクロノネン(DBN)、及び1,1,3,3-テトラメチルグアニジン(TMG);並びにこれらの組み合わせからなる群より選択される、[6]又は[7]に記載の方法。
[9]
前記強塩基が、カリウムtert-ブトキシド、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、又はリチウムヘキサメチルジシラジド(LHMDS)である、[6]又は[7]に記載の方法。
[10]
前記式A-10で示される化合物を、パーフルオロカルボン酸のアルキルエステルの存在下で、強塩基と反応させることにより、前記式A-11で示される化合物を生成する工程が、C1~C10アルコール溶媒単独中で行われるか、又はC1~C10アルコール溶媒とアミド系溶媒、エーテル系溶媒、エステル系溶媒、芳香族系溶媒、ハロゲン系溶媒、炭化水素系溶媒、若しくはニトリル系溶媒との混合溶媒中で行われる、[6]~[9]のいずれか一項に記載の方法。
[11]
前記工程I-3において、前記式A-14で示される化合物中のアミノ基を、アリールオキシカルボニル(COOAr)基で保護することによって前記式A-15で示される化合物を生成する、[1]~[10]のいずれか一項に記載の方法。
[12]
前記工程I-3において、前記式A-14で示される化合物から前記式A-15で示される化合物を生成する工程が、炭酸水素ナトリウム、炭酸水素カリウム、リン酸水素二ナトリウム、又はリン酸水素二カリウムの水溶液中で行われる、[1]~[11]のいずれか一項に記載の方法。
[13]
前記R1が、イソプロピル又は4-メトキシフェニルである、[1]~[12]のいずれか一項に記載の方法。
[14]
前記式A-16で示される化合物を生成するための工程であって、以下の式G-11:
[15]
以下の式A-5:
[16]
前記フルオラスアルコールが、ヘキサフルオロ-2-プロパノール(HFIP)、2,2,2-トリフルオロエタノール(TFE)、2,2,3,3,4,4,5,5-オクタフルオロ-1-ペンタノール、ノナフルオロ-tert-ブチルアルコール及びこれらの組み合わせからなる群から選択される、[15]に記載の方法。
[17]
前記反応が、-35℃~70℃で行われる、[15]又は[16]に記載の方法。
[18]
前記反応が、-30℃~-10℃で行われる、[15]又は[16]に記載の方法。
[19]
以下の式A-11:
[20]
前記パーフルオロカルボン酸のアルキルエステルが、トリフルオロ酢酸メチル、トリフルオロ酢酸エチル、トリフルオロ酢酸プロピル、トリフルオロ酢酸イソプロピル、トリフルオロ酢酸ブチル、ペンタフルオロプロピオン酸メチル、ペンタフルオロプロピオン酸エチル、ペンタフルオロプロピオン酸プロピル、ぺンタフルオロプロピオン酸イソプロピル、ぺンタフルオロプロピオン酸ブチル、ヘプタフルオロ酪酸メチル、ヘプタフルオロ酪酸エチル、ヘプタフルオロ酪酸プロピル、ヘプタフルオロ酪酸イソプロピル、ヘプタフルオロ酪酸ブチル、ノナフルオロ吉草酸メチル、ノナフルオロ吉草酸エチル、ノナフルオロ吉草酸プロピル、ノナフルオロ吉草酸イソプロピル、ノナフルオロ吉草酸ブチル、ウンデカフルオロカプロン酸メチル、ウンデカフルオロカプロン酸エチル、ウンデカフルオロカプロン酸プロピル、ウンデカフルオロカプロン酸イソプロピル、又はウンデカフルオロカプロン酸ブチルである、[19]に記載の方法。
[21]
前記強塩基が、金属アミドのナトリウム塩、リチウム塩、及びカリウム塩;C1~C20アルコキシドのナトリウム塩、リチウム塩、カリウム塩、セシウム塩、及びバリウム塩;水素化ナトリウム、水素化カリウム、水素化リチウム、ブチルリチウム、炭酸カリウム、炭酸ナトリウム、炭酸セシウム、炭酸リチウム、リン酸カリウム、リン酸ナトリウム、リン酸セシウム、リン酸リチウム、ジアザビシクロウンデセン(DBU)、ジアザビシクロノネン(DBN)、及び1,1,3,3-テトラメチルグアニジン(TMG);並びにこれらの組み合わせからなる群より選択される、[19]又は[20]に記載の方法。
[22]
前記強塩基が、カリウムtert-ブトキシド、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、又はリチウムヘキサメチルジシラジド(LHMDS)である、[19]又は[20]に記載の方法。
[23]
前記反応が、C1~C10アルコール溶媒単独又はC1~C10アルコール溶媒とアミド系溶媒、エーテル系溶媒、エステル系溶媒、芳香族系溶媒、ハロゲン系溶媒、炭化水素系溶媒、若しくはニトリル系溶媒との混合溶媒中で行われる、[19]~[22]のいずれか一項に記載の方法。
[24]
以下の式A-17:
[25]
R5が、アリールオキシカルボニル(COOAr)基である、[24]に記載の方法。
[26]
以下の式A-18:
[27]
以下の式A-22:
[28]
以下の式A’-22:
[29]
以下の式A-8:
[30]
以下の式A-10:
[31]
以下の式A-11:
[32]
以下の式A-13:
[33]
以下のA-14:
[34]
以下の式A-14-FMA:
[35]
以下の式A-15:
[36]
以下の式A-17:
[37]
以下の式A-18-FF:
[38]
以下の式A-19-FF:
[39]
以下の式A-20-FF:
[40]
以下の式A’-20-FF:
[41]
糖鎖リモデリング抗体又はそのFc領域含有分子の製造方法であって、[1]~[14]のいずれか一項に記載の方法を含む式A-22で示される化合物を得る工程、及び、得られた式A-22で示される化合物と、N297結合糖鎖としてフコースが付加していてもよいコアGlcNAcを有する抗体又はそのFc領域含有分子であるアクセプター分子とを反応させて、前記糖鎖リモデリング抗体又はそのFc領域含有分子る工程を含む、方法。
[42]
更に、アジド基(N3-)にアルキン構造を有する分子と反応させる工程を含む、[41]に記載の製造方法。
[43]
前記アルキン構造を有する分子が、化学療法剤、分子標的薬、免疫活性化剤、毒素、抗菌剤、抗ウイルス剤、診断用薬剤、タンパク質、ペプチド、アミノ酸、核酸、抗原、ビタミン及びホルモンから選択される、[42]に記載の製造方法。
[44]
[41]~[43]のいずれか一項に記載の製造方法を含む、抗体薬物コンジュゲートの製造方法。
[45]
前記工程I-1において、前記式A-3で示される化合物と前記式A-5で示される化合物との反応を停止させた後、生成した前記式A-6で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A-6で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A-6で示される化合物を前記疎水性担体から溶出させることにより、前記式A-6で示される化合物を精製することを含む、[1]~[14]のいずれか一項に記載の方法。
[46]
前記工程I-2において、前記式A-8で示される化合物と前記式A-9で示される化合物との反応を停止させた後、生成した前記式A-10で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A-10で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A-10で示される化合物を前記疎水性担体から溶出させることにより、前記式A-10で示される化合物を精製することを含む、[1]~[14]及び[45]のいずれか一項に記載の方法。
[47]
前記工程I-3において、前記式A-11で示される化合物と前記式A-12で示される化合物との反応を停止させた後、生成した前記式A-13で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A-13で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A-13で示される化合物を前記疎水性担体から溶出させることにより、前記式A-13で示される化合物を精製することを含む、[1]~[14]、[45]、及び[46]のいずれか一項に記載の方法。
[48]
前記工程I-3において、生成した前記式A-14で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A-14で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A-14で示される化合物を前記疎水性担体から溶出させることにより、前記式A-14で示される化合物を精製することを含む、[1]~[14]及び[45]~[47]のいずれか一項に記載の方法。
[49]
前記工程I-4において、前記式A-15で示される化合物と前記式A-16で示される化合物との反応を停止させた後、生成した前記式A-17で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A-17で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A-17で示される化合物を前記疎水性担体から溶出させることにより、前記式A-17で示される化合物を精製することを含む、[1]~[14]及び[45]~[48]のいずれか一項に記載の方法。
[50]
前記夾雑物が、前記式A-6で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[45]に記載の方法。
[51]
前記夾雑物が、前記式A-10で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[46]に記載の方法。
[52]
前記夾雑物が、前記式A-13で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[47]に記載の方法。
[53]
前記夾雑物が、前記式A-14で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[48]に記載の方法。
[54]
前記夾雑物が、前記式A-17で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[49]に記載の方法。
[55]
前記疎水性担体が、逆相分配クロマトグラフィー充填用樹脂である、[45]~[54]のいずれか一項に記載の方法。
[56]
前記逆相分配クロマトグラフィー充填用樹脂が、ポリ(スチレン/ジビニルベンゼン)ポリマーゲル樹脂、ポリスチレン-ジビニルベンゼン樹脂、ポリヒドロキシメタクリレート樹脂、スチレンビニルベンゼン共重合体樹脂、ポリビニルアルコール樹脂、ポリスチレン樹脂、ポリメタクリレート樹脂、化学結合型シリカゲル樹脂、及びこれらの組み合わせからなる群から選択される、[55]に記載の方法。
[57]
前記化学結合型シリカゲル樹脂が、(1)シリカゲルに、シランカップリング剤を反応させて得られる樹脂、(2)シリカゲルに、ジメチルオクタデシル、オクタデシル、トリメチルオクタデシル、ジメチルオクチル、オクチル、ブチル、エチル、メチル、フェニル、シアノプロピル、又はアミノプロピル基を化学結合して得られる樹脂、(3)シリカゲルに、ドコシル又はトリアコンチル基を化学結合して得られる樹脂、及び(4)前述の(1)~(3)の組み合わせからなる群から選択される、[56]に記載の方法。
[58]
前記化学結合型シリカゲル樹脂が、オクタデシル基結合シリカゲル樹脂(ODS樹脂)である、[56]に記載の方法。
[59]
前記水溶性有機溶媒が、水溶性アルコール系溶媒、水溶性ニトリル系溶媒、水溶性エーテル系溶媒、水溶性ケトン系溶媒、水溶性アミド系溶媒、又は水溶性スルホキシド系溶媒、もしくは前述の水溶性有機溶媒系を少なくとも1種以上含む混合溶媒である、[45]~[56]のいずれか一項に記載の方法。
[60]
前記水溶性ニトリル系溶媒が、アセトニトリルである、[59]に記載の方法。
[61]
前記疎水性担体から目的物の溶出工程で使用される前記有機溶媒が、ニトリル系溶媒、エーテル系溶媒、エステル系溶媒、ケトン系溶媒、ハロゲン系溶媒、芳香族系溶媒、又は前述の溶媒系を少なくとも1種以上含む混合溶媒である、[45]~[60]のいずれか一項に記載の方法。
[62]
以下の式A-6:
[63]
以下の式A-10:
[64]
以下の式A-13:
[65]
以下の式A-14:
[66]
以下の式A-17:
[67]
前記夾雑物が、前記式A-6で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[62]に記載の方法。
[68]
前記夾雑物が、前記式A-10で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[63]に記載の方法。
[69]
前記夾雑物が、前記式A-13で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[64]に記載の方法。
[70]
前記夾雑物が、前記式A-14で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[65]に記載の方法。
[71]
前記夾雑物が、前記式A-17で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[66]に記載の方法。
[72]
前記疎水性担体が、逆相分配クロマトグラフィー充填用樹脂である、[62]~[71]のいずれか一項に記載の方法。
[73]
前記逆相分配クロマトグラフィー充填用樹脂が、ポリ(スチレン/ジビニルベンゼン)ポリマーゲル樹脂、ポリスチレン-ジビニルベンゼン樹脂、ポリヒドロキシメタクリレート樹脂、スチレンビニルベンゼン共重合体樹脂、ポリビニルアルコール樹脂、ポリスチレン樹脂、ポリメタクリレート樹脂、化学結合型シリカゲル樹脂、及びこれらの組み合わせからなる群から選択される、[72]に記載の方法。
[74]
前記化学結合型シリカゲル樹脂が、(1)シリカゲルに、シランカップリング剤を反応させて得られる樹脂、(2)シリカゲルに、ジメチルオクタデシル、オクタデシル、トリメチルオクタデシル、ジメチルオクチル、オクチル、ブチル、エチル、メチル、フェニル、シアノプロピル、又はアミノプロピル基を化学結合して得られる樹脂、(3)シリカゲルに、ドコシル又はトリアコンチル基を化学結合して得られる樹脂、及び(4)前述の(1)~(3)の組み合わせからなる群から選択される、[73]に記載の方法。
[75]
前記化学結合型シリカゲル樹脂が、オクタデシル基結合シリカゲル樹脂(ODS樹脂)である、[73]に記載の方法。
[76]
前記水溶性有機溶媒が、水溶性アルコール系溶媒、水溶性ニトリル系溶媒、水溶性エーテル系溶媒、水溶性ケトン系溶媒、水溶性アミド系溶媒、水溶性スルホキシド系溶媒、又は前述の水溶性有機溶媒系を少なくとも1種以上含む混合溶媒である、[62]~[75]のいずれか一項に記載の方法。
[77]
前記水溶性ニトリル系溶媒が、アセトニトリルである、[76]に記載の方法。
[78]
前記疎水性担体から目的物の溶出工程で使用される前記有機溶媒が、ニトリル系溶媒、エーテル系溶媒、エステル系溶媒、ケトン系溶媒、ハロゲン系溶媒、芳香族系溶媒、又は前述の溶媒系を少なくとも1種以上含む混合溶媒である、[62]~[77]のいずれか一項に記載の方法。
[1]
以下の式A’-22:
(工程I-1)式A-3:
(工程I-2)前記式A-8で示される化合物を、以下の式A’-9:
(工程I-3)前記式A’-11で示される化合物を、以下の式A-12:
(工程I-4)前記式A’-15で示される化合物を、以下の式A-16:
(工程I-5)前記式A’-20で示される化合物を、以下の式A-21:
を含む、方法。
[2]
以下の式A-4:
[3]
前記フルオラスアルコールが、ヘキサフルオロ-2-プロパノール(HFIP)、2,2,2-トリフルオロエタノール(TFE)、2,2,3,3,4,4,5,5-オクタフルオロ-1-ペンタノール、ノナフルオロ-tert-ブチルアルコール及びこれらの組み合わせからなる群から選択される、[2]に記載の方法。
[4]
前記反応が、-35℃~70℃で行われる、[2]又は[3]に記載の方法。
[5]
前記反応が、-30℃~-10℃で行われる、[2]又は[3]に記載の方法。
[6]
前記工程I-1において、前記式A-3で示される化合物と前記式A-5で示される化合物との反応を停止させた後、生成した前記式A-6で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A-6で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A-6で示される化合物を前記疎水性担体から溶出させることにより、前記式A-6で示される化合物を精製することを含む、[1]~[5]のいずれか一項に記載の方法。
[7]
前記工程I-2において、前記式A-8で示される化合物と前記式A’-9で示される化合物との反応を停止させた後、生成した前記式A’-10で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A’-10で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A’-10で示される化合物を前記疎水性担体から溶出させることにより、前記式A’-10で示される化合物を精製することを含む、[1]~[6]のいずれか一項に記載の方法。
[8]
前記工程I-3において、前記式A’-11で示される化合物と前記式A-12で示される化合物との反応を停止させた後、生成した前記式A’-13で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A’-13で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A’-13で示される化合物を前記疎水性担体から溶出させることにより、前記式A’-13で示される化合物を精製することを含む、[1]~[7]のいずれか一項に記載の方法。
[9]
前記工程I-3において、生成した前記式A’-14で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A’-14で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A’-14で示される化合物を前記疎水性担体から溶出させることにより、前記式A’-14で示される化合物を精製することを含む、[1]~[8]のいずれか一項に記載の方法。
[10]
前記工程I-4において、前記式A’-15で示される化合物と前記式A-16で示される化合物との反応を停止させた後、生成した前記式A’-17で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に前記式A’-17で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を前記水溶性有機溶媒と前記水との混合溶液で洗浄することで、前記夾雑物の除去を行い、次いで、有機溶媒を用いて前記式A’-17で示される化合物を前記疎水性担体から溶出させることにより、前記式A’-17で示される化合物を精製することを含む、[1]~[9]のいずれか一項に記載の方法。
[11]
前記夾雑物が、前記式A-6で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[6]に記載の方法。
[12]
前記夾雑物が、前記式A’-10で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[7]に記載の方法。
[13]
前記夾雑物が、前記式A’-13で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[8]に記載の方法。
[14]
前記夾雑物が、前記式A’-14で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[9]に記載の方法。
[15]
前記夾雑物が、前記式A’-17で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[10]に記載の方法。
[16]
前記疎水性担体が、逆相分配クロマトグラフィー充填用樹脂である、[6]~[15]のいずれか一項に記載の方法。
[17]
前記逆相分配クロマトグラフィー充填用樹脂が、ポリ(スチレン/ジビニルベンゼン)ポリマーゲル樹脂、ポリスチレン-ジビニルベンゼン樹脂、ポリヒドロキシメタクリレート樹脂、スチレンビニルベンゼン共重合体樹脂、ポリビニルアルコール樹脂、ポリスチレン樹脂、ポリメタクリレート樹脂、化学結合型シリカゲル樹脂、及びこれらの組み合わせからなる群から選択される、[16]に記載の方法。
[18]
前記化学結合型シリカゲル樹脂が、(1)シリカゲルに、シランカップリング剤を反応させて得られる樹脂、(2)シリカゲルに、ジメチルオクタデシル、オクタデシル、トリメチルオクタデシル、ジメチルオクチル、オクチル、ブチル、エチル、メチル、フェニル、シアノプロピル、又はアミノプロピル基を化学結合して得られる樹脂、(3)シリカゲルに、ドコシル又はトリアコンチル基を化学結合して得られる樹脂、及び(4)前述の(1)~(3)の組み合わせからなる群から選択される、[17]に記載の方法。
[19]
前記化学結合型シリカゲル樹脂が、オクタデシル基結合シリカゲル樹脂(ODS樹脂)である、[17]に記載の方法。
[20]
前記水溶性有機溶媒が、水溶性アルコール系溶媒、水溶性ニトリル系溶媒、水溶性エーテル系溶媒、水溶性ケトン系溶媒、水溶性アミド系溶媒、又は水溶性スルホキシド系溶媒、もしくは前述の水溶性有機溶媒系を少なくとも1種以上含む混合溶媒である、[6]~[19]のいずれか一項に記載の方法。
[21]
前記水溶性ニトリル系溶媒が、アセトニトリルである、[20]に記載の方法。
[22]
前記疎水性担体から目的物の溶出工程で使用される前記有機溶媒が、ニトリル系溶媒、エーテル系溶媒、エステル系溶媒、ケトン系溶媒、ハロゲン系溶媒、芳香族系溶媒、又は前述の溶媒系を少なくとも1種以上含む混合溶媒である、[6]~[21]のいずれか一項に記載の方法。
[23]
前記工程I-2において、前記式A’-10で示される化合物を、パーフルオロカルボン酸のアルキルエステルの存在下で、強塩基と反応させることにより、前記式A’-11で示される化合物を生成することを含む、[1]~[22]のいずれか一項に記載の方法。
[24]
前記パーフルオロカルボン酸のアルキルエステルが、トリフルオロ酢酸メチル、トリフルオロ酢酸エチル、トリフルオロ酢酸プロピル、トリフルオロ酢酸イソプロピル、トリフルオロ酢酸ブチル、ペンタフルオロプロピオン酸メチル、ペンタフルオロプロピオン酸エチル、ペンタフルオロプロピオン酸プロピル、ぺンタフルオロプロピオン酸イソプロピル、ぺンタフルオロプロピオン酸ブチル、ヘプタフルオロ酪酸メチル、ヘプタフルオロ酪酸エチル、ヘプタフルオロ酪酸プロピル、ヘプタフルオロ酪酸イソプロピル、ヘプタフルオロ酪酸ブチル、ノナフルオロ吉草酸メチル、ノナフルオロ吉草酸エチル、ノナフルオロ吉草酸プロピル、ノナフルオロ吉草酸イソプロピル、ノナフルオロ吉草酸ブチル、ウンデカフルオロカプロン酸メチル、ウンデカフルオロカプロン酸エチル、ウンデカフルオロカプロン酸プロピル、ウンデカフルオロカプロン酸イソプロピル、又はウンデカフルオロカプロン酸ブチルである、[23]に記載の方法。
[25]
前記強塩基が、金属アミドのナトリウム塩、リチウム塩、及びカリウム塩;C1~C20アルコキシドのナトリウム塩、リチウム塩、カリウム塩、セシウム塩、及びバリウム塩;水素化ナトリウム、水素化カリウム、水素化リチウム、ブチルリチウム、炭酸カリウム、炭酸ナトリウム、炭酸セシウム、炭酸リチウム、リン酸カリウム、リン酸ナトリウム、リン酸セシウム、リン酸リチウム、ジアザビシクロウンデセン(DBU)、ジアザビシクロノネン(DBN)、及び1,1,3,3-テトラメチルグアニジン(TMG);並びにこれらの組み合わせからなる群より選択される、[23]又は[24]に記載の方法。
[26]
前記強塩基が、カリウムtert-ブトキシド、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、又はリチウムヘキサメチルジシラジド(LHMDS)である、[23]又は[24]に記載の方法。
[27]
前記式A’-10で示される化合物を、パーフルオロカルボン酸のアルキルエステルの存在下で、強塩基と反応させることにより、前記式A’-11で示される化合物を生成する工程が、C1~C10アルコール溶媒単独中で行われるか、又はC1~C10アルコール溶媒とアミド系溶媒、エーテル系溶媒、エステル系溶媒、芳香族系溶媒、ハロゲン系溶媒、炭化水素系溶媒、若しくはニトリル系溶媒との混合溶媒中で行われる、[23]~[26]のいずれか一項に記載の方法。
[28]
前記工程I-3において、前記式A’-14で示される化合物中のアミノ基を、アリールオキシカルボニル(COOAr)基で保護することによって前記式A’-15で示される化合物を生成する、[1]~[27]のいずれか一項に記載の方法。
[29]
前記工程I-3において、前記式A’-14で示される化合物から前記式A’-15で示される化合物を生成する工程が、炭酸水素ナトリウム、炭酸水素カリウム、リン酸水素二ナトリウム、又はリン酸水素二カリウムの水溶液中で行われる、[1]~[28]のいずれか一項に記載の方法。
[30]
以下の式A-5:
[31]
前記フルオラスアルコールが、ヘキサフルオロ-2-プロパノール(HFIP)、2,2,2-トリフルオロエタノール(TFE)、2,2,3,3,4,4,5,5-オクタフルオロ-1-ペンタノール、ノナフルオロ-tert-ブチルアルコール及びこれらの組み合わせからなる群から選択される、[30]に記載の方法。
[32]
前記反応が、-35℃~70℃で行われる、[30]又は[31]に記載の方法。
[33]
前記反応が、-30℃~-10℃で行われる、[30]又は[31]に記載の方法。
[34]
以下の式A-6:
[35]
以下の式A’-10:
[36]
以下の式A’-13:
[37]
以下の式A’-14:
[38]
以下の式A’-17:
[39]
前記夾雑物が、前記式A-6で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[34]に記載の方法。
[40]
前記夾雑物が、前記式A’-10で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[35]に記載の方法。
[41]
前記夾雑物が、前記式A’-13で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[36]に記載の方法。
[42]
前記夾雑物が、前記式A’-14で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[37]に記載の方法。
[43]
前記夾雑物が、前記式A’-17で示される化合物以外の糖化合物、及び/又は前記精製される化合物を得るための反応試薬由来の化合物を含む、[38]に記載の方法。
[44]
前記疎水性担体が、逆相分配クロマトグラフィー充填用樹脂である、[34]~[43]のいずれか一項に記載の方法。
[45]
前記逆相分配クロマトグラフィー充填用樹脂が、ポリ(スチレン/ジビニルベンゼン)ポリマーゲル樹脂、ポリスチレン-ジビニルベンゼン樹脂、ポリヒドロキシメタクリレート樹脂、スチレンビニルベンゼン共重合体樹脂、ポリビニルアルコール樹脂、ポリスチレン樹脂、ポリメタクリレート樹脂、化学結合型シリカゲル樹脂、及びこれらの組み合わせからなる群から選択される、[44]に記載の方法。
[46]
前記化学結合型シリカゲル樹脂が、(1)シリカゲルに、シランカップリング剤を反応させて得られる樹脂、(2)シリカゲルに、ジメチルオクタデシル、オクタデシル、トリメチルオクタデシル、ジメチルオクチル、オクチル、ブチル、エチル、メチル、フェニル、シアノプロピル、又はアミノプロピル基を化学結合して得られる樹脂、(3)シリカゲルに、ドコシル又はトリアコンチル基を化学結合して得られる樹脂、及び(4)前述の(1)~(3)の組み合わせからなる群から選択される、[45]に記載の方法。
[47]
前記化学結合型シリカゲル樹脂が、オクタデシル基結合シリカゲル樹脂(ODS樹脂)である、[45]に記載の方法。
[48]
前記水溶性有機溶媒が、水溶性アルコール系溶媒、水溶性ニトリル系溶媒、水溶性エーテル系溶媒、水溶性ケトン系溶媒、水溶性アミド系溶媒、水溶性スルホキシド系溶媒、又は前述の水溶性有機溶媒系を少なくとも1種以上含む混合溶媒である、[34]~[47]のいずれか一項に記載の方法。
[49]
前記水溶性ニトリル系溶媒が、アセトニトリルである、[48]に記載の方法。
[50]
前記疎水性担体から目的物の溶出工程で使用される前記有機溶媒が、ニトリル系溶媒、エーテル系溶媒、エステル系溶媒、ケトン系溶媒、ハロゲン系溶媒、芳香族系溶媒、又は前述の溶媒系を少なくとも1種以上含む混合溶媒である、[34]~[49]のいずれか一項に記載の方法。
[51]
以下の式A’-11:
[52]
前記パーフルオロカルボン酸のアルキルエステルが、トリフルオロ酢酸メチル、トリフルオロ酢酸エチル、トリフルオロ酢酸プロピル、トリフルオロ酢酸イソプロピル、トリフルオロ酢酸ブチル、ペンタフルオロプロピオン酸メチル、ペンタフルオロプロピオン酸エチル、ペンタフルオロプロピオン酸プロピル、ぺンタフルオロプロピオン酸イソプロピル、ぺンタフルオロプロピオン酸ブチル、ヘプタフルオロ酪酸メチル、ヘプタフルオロ酪酸エチル、ヘプタフルオロ酪酸プロピル、ヘプタフルオロ酪酸イソプロピル、ヘプタフルオロ酪酸ブチル、ノナフルオロ吉草酸メチル、ノナフルオロ吉草酸エチル、ノナフルオロ吉草酸プロピル、ノナフルオロ吉草酸イソプロピル、ノナフルオロ吉草酸ブチル、ウンデカフルオロカプロン酸メチル、ウンデカフルオロカプロン酸エチル、ウンデカフルオロカプロン酸プロピル、ウンデカフルオロカプロン酸イソプロピル、又はウンデカフルオロカプロン酸ブチルである、[51]に記載の方法。
[53]
前記強塩基が、金属アミドのナトリウム塩、リチウム塩、及びカリウム塩;C1~C20アルコキシドのナトリウム塩、リチウム塩、カリウム塩、セシウム塩、及びバリウム塩;水素化ナトリウム、水素化カリウム、水素化リチウム、ブチルリチウム、炭酸カリウム、炭酸ナトリウム、炭酸セシウム、炭酸リチウム、リン酸カリウム、リン酸ナトリウム、リン酸セシウム、リン酸リチウム、ジアザビシクロウンデセン(DBU)、ジアザビシクロノネン(DBN)、及び1,1,3,3-テトラメチルグアニジン(TMG);並びにこれらの組み合わせからなる群より選択される、[51]又は[52]に記載の方法。
[54]
前記強塩基が、カリウムtert-ブトキシド、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、又はリチウムヘキサメチルジシラジド(LHMDS)である、[51]又は[52]に記載の方法。
[55]
前記反応が、C1~C10アルコール溶媒単独又はC1~C10アルコール溶媒とアミド系溶媒、エーテル系溶媒、エステル系溶媒、芳香族系溶媒、ハロゲン系溶媒、炭化水素系溶媒、若しくはニトリル系溶媒との混合溶媒中で行われる、[51]~[54]のいずれか一項に記載の方法。
[56]
以下の式A’-17:
[57]
R5が、アリールオキシカルボニル(COOAr)基である、[56]に記載の方法。
[58]
以下の式A’-18:
[59]
以下の式A’-22:
[60]
以下の式A’-8:
[61]
以下の式A’-10:
[62]
以下の式A’-11:
[63]
以下の式A’-13:
[64]
以下のA’-14:
[65]
以下の式A’-15:
[66]
以下の式A’-17:
[67]
以下の式A’-18:
[68]
以下の式A’-19:
[69]
以下の式A’-20:
本発明の一態様において、式A-22で示される新規オリゴ糖及びその新規製造方法が提供される。本発明において、式A-22で示されるオリゴ糖は、以下のオリゴ糖を意味する。
工程I-1は、式A-3:
工程I-1-1は、式A-3で示される化合物と式A-5で示される化合物とをα-1,3-グリコシド結合及びα-1,6-グリコシド結合させることにより、式A-6で示される化合物を製造する工程である。本工程は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例32又は55に示した方法によって行うことができ、例えば、式A-3で示される化合物を、有機溶媒(トルエン等)中、モレキュラーシーブ4A粉末、トリフルオロメタンスルホン酸トリメチルシリル(TMSOTf)を順次添加して、上記式A-5で示される化合物とα-1,3-グリコシド結合及びα-1,6-グリコシド結合させることにより、上記式A-6で示される化合物を生成することができる。また、出発材料である式A-3で示される化合物及び式A-5で示される化合物は、以下のようにして製造することができる。
本発明の一態様において、式A-3で示される化合物は、以下の工程により製造することができるが、当該製造方法に限定するものではない。
式A-5で示される化合物は、まず以下の式A-4で示される化合物を製造し、次いで、当該化合物から式A-5で示される化合物を製造する。
工程X-1は、以下の式C-1:
工程X-2は、式C-2で示される化合物を、二箇所のイソプロピリデンの酸加水分解とピラノース環形成により、以下の式C-3:
工程X-3は、式C-3で示される化合物上の水酸基をアセチル基にて保護することにより、以下の式C-4:
工程X-4は、式C-4で示される化合物の1位の炭素に結合しているアセチルオキシ基におけるアセチル基のみを選択的に脱離させることにより、以下の式C-5:
工程X-5は、式C-5で示される化合物をトリクロロアセトニトリルと反応させることにより、以下の式C-6:
工程X-6は、式C-6で示される化合物を、以下の式C-7:
工程X-7は、式C-8で示される化合物より、アセチル基を脱離させることにより、以下の式C-9:
工程X-8は、式C-9で示される化合物において、D-グルコピラノシドの4位及び6位の炭素に結合している水酸基を、ベンズアルデヒドジメチルアセタールを用いて選択的に保護することにより、以下の式C-10:
工程X-9は、式C-10で示される化合物を、トリフルオロメタンスルホニルオキシ基、ノナフルオロブタンスルホニルオキシ基、2-ニトロベンゼンスルホニルオキシ基及び4-ニトロベンゼンスルホニルオキシ基からなる群より選択される脱離基を付与する化合物と反応させることにより、以下の式C-11:
工程X-10は、式C-11で示される化合物を、酢酸セシウム又はテトラブチルアンモニウムアセテートと反応させることにより、以下の式C-12:
工程X-11は、式C-12で示される化合物において、X2基を脱離させるともに、フタルイミド基を開環させることにより、以下の式C-13:
工程X-12は、式C-13で示される化合物における開環したフタルイミド基を脱水縮合により閉環することにより、以下の式C-14:
工程X-13は、式C-14で示される化合物において、D-マンノピラノシドの2位の炭素に結合している水酸基をベンジル基で保護することにより、以下の式C-15:
工程X-14は、式C-15で示される化合物において、ベンジリデン保護基を選択的に還元することにより(より詳細には、Angew. Chem. Int. Ed. 2005, 44, 1665-1668を参照のこと)、D-マンノピラノシドの6位の炭素に結合している水酸基のみが脱保護された、以下の式A-4:
工程X-15は、式C-10で示される化合物において、D-グルコピラノシドの2位を酸化することにより、以下の式C-16:
工程X-16は、式C-16で示される化合物において、2-ケト-D-グルコピラノシドの2位の炭素に結合しているケトン基を還元することにより、以下の式C-14:
本工程I-1-1では、以下の精製方法により、式A-6で示される化合物を精製された形態で得ることができる。当該精製方法としては、上記式A-3で示される化合物と上記式A-5で示される化合物との反応を停止させた後、生成した上記式A-6で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に上記式A-6で示される化合物を吸着させ、次いで、ろ過及び疎水性担体を上記水溶性有機溶媒と水との混合溶液で洗浄することで、夾雑物の除去を行い、次いで、有機溶媒を用いて上記式A-6で示される化合物を疎水性担体から溶出させることにより、上記式A-6で示される化合物を精製することを含む。当該精製方法より、オリゴ糖鎖の液相合成において、グリコシル化反応後に残留する試薬残骸や糖供与体及び糖受容体由来の不純物を、少量の疎水性担体を用いて洗浄操作を行うことで、簡便に除去でき、これら不純物による反応阻害及び副反応も抑制できるため、高品質のオリゴ糖を大量かつ効率的に製造することが可能となった。また、本願発明は従来開発されてきた手法と比較して、基質自身が有する疎水性を利用することにより、タグ脱着の工程数の削減及びオリゴ化時のタグの機能性の低下を防ぐことが可能となっており、より効率的にオリゴ糖を製造することが可能である。特に、本工程では、上記精製方法により、式A-6で示される化合物を式A-4で示される化合物由来の分解物から容易に分離精製することができる。
工程I-1-3は、上記式A-7で示される化合物から上記式A-8で示される化合物を生成する工程である。本工程は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例34又は57に示した方法によって行うことができる。
工程I-2は、上記式A-8で示される化合物を、以下の式A-9:
工程I-2-1は、式A-8で示される化合物を、式A-9で示される化合物とβ-1,4-グリコシド結合させることにより、式A-10で示される化合物を生成する工程である。式A-9で示される化合物は、既知の方法によって製造することができ、又は、市販品を使用することができる。式A’-9(式A-9で示される化合物において、式中のR1が4-メトキシフェニルである化合物)で示される化合物の市販品としては、例えば、東京化成工業株式会社製の4-メトキシフェニル3,6-ジ-O-ベンジル-2-デオキシ-2-フタルイミド-β-D-グルコピラノシドを挙げることができる。あるいは、式A’’-9で示される化合物は、後述のようにして製造した式A-12で示される化合物に対して例えば実施例59に示される処理を施して、イソプロピル 4-O-アセチルー3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式F’’-1で示される化合物)を得て、さらに、式F’’-1で示される化合物に対して例えば実施例60に示される処理を施して、式A’’-9で示される化合物を得ることができる。式A-10で示される化合物を生成する工程である本工程は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例35又は61に示した方法によって行うことができる。
本工程I-2-1では、以下の精製方法により、式A-10で示される化合物を精製された形態で得ることができる。当該精製方法としては、上記式A-8で示される化合物と上記式A-9で示される化合物との反応を停止させた後、生成した上記式A-10で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に上記式A-10で示される化合物を吸着させ、次いで、ろ過及び疎水性担体を上記水溶性有機溶媒と水との混合溶液で洗浄することで、夾雑物の除去を行い、次いで、有機溶媒を用いて上記式A-10で示される化合物を疎水性担体から溶出させることにより、上記式A-10で示される化合物を精製することを含む。上記式A-6で示される化合物の精製方法で述べたのと同様、当該精製方法では、少量の疎水性担体を用いることで、オリゴ糖鎖の液相合成において、高品質のオリゴ糖を大量かつ効率的に製造することが可能となった。特に、単糖である式A-9で示される化合物及び5糖である式A-10で示される化合物は順相シリカゲルカラムクロマトグラフィーにおいて極性が極めて近く、例えば典型的なカラム溶媒系であるヘキサン-酢酸エチル条件では同一のRf値であり分離は困難であったが、本発明の精製方法を利用することにより、極性の極めて近い単糖及び5糖を容易に分離することができることが可能となった。
工程I-2-2は、式A-10で示される化合物から式A-11で示される化合物を生成する工程である。
工程I-3は、上記式A-11で示される化合物を、以下の式A-12:
工程I-3-1は、上記式A-11で示される化合物を上記式A-12で示される化合物とβ-1,2-グリコシド結合させることにより、上記式A-13で示される化合物を生成する工程である。上記のグリコシド結合工程は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例37又は63に示した方法によって行うことができる。また、式A-12で示される化合物は、以下のようにして製造することができる。さらに、式A-13で示される化合物は後述のようにして精製されてもよい。
上記式A-12で示される化合物は、以下の小工程Z-1~Z-3のようにして製造することができる。
まず、上記工程I-2でも使用した式A-9:
次いで、式F-2で示される化合物を、2,2,2-トリフルオロ-N-フェニルアセトイミドイルクロリド(TFPC)と反応させることにより、式A-12:
上記工程I-3-1では、以下の精製方法により、式A-13で示される化合物を精製された形態で得ることができる。当該精製方法としては、上記式A-11で示される化合物と上記式A-12で示される化合物との反応を停止させた後、生成した上記式A-13で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に上記式A-13で示される化合物を吸着させ、次いで、ろ過及び該疎水性担体を上記水溶性有機溶媒と水との混合溶液で洗浄することで、夾雑物の除去を行い、次いで、有機溶媒を用いて上記式A-13で示される化合物を疎水性担体から溶出させることにより、上記式A-13で示される化合物を精製することを含む。上記式A-6で示される化合物の精製方法で述べたのと同様、上記精製方法より、少量の疎水性担体を用いることで、オリゴ糖鎖の液相合成において、高品質のオリゴ糖を大量かつ効率的に製造することが可能となった。
工程I-3-2は、上記式A-13で示される化合物上のアミノ基の保護基であるフタロイル基及び水酸基上のアセチル基を除去して、式A-14で示される化合物を生成する工程である。当該工程は、好適には、例えば、実施例38又は64に示した方法によって行うことができ、例えば、式A-13で示される化合物を含む溶液に、n-ブタノール及びエチレンジアミンを添加することにより行うことができるが、これらに限定されず、また、上記n-ブタノール及びエチレンジアミンを添加後に、酸(例えば、フマル酸)を添加して攪拌後、種晶を接種してから、式A-14で示される化合物の酸塩(例えば、フマル酸塩)の結晶を取得してもよい(例えば、実施例64を参照のこと)。当該酸塩を単離することにより、式A-14で示される化合物の類似体(異性体など)を濾過で除去し、高純度化が可能となる。なお、添加する当該「酸」としては、フマル酸を好適に用いることができるが、これに限定するものではない。
本工程I-3-2では、以下の精製方法により、式A-14で示される化合物を精製された形態で得ることができる。当該精製方法としては、上記のようにして生成した式A-14で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に上記式A-14で示される化合物を吸着させ、次いで、ろ過及び疎水性担体を上記水溶性有機溶媒と水との混合溶液で洗浄することで、夾雑物の除去を行い、次いで、有機溶媒を用いて上記式A-14で示される化合物を疎水性担体から溶出させることにより、上記式A-14で示される化合物を精製することを含む。上記工程I-1-1における式A-6で示される化合物の精製方法で述べたのと同様、当該精製方法では、少量の疎水性担体を用いることで、オリゴ糖鎖の液相合成において、高品質のオリゴ糖を大量かつ効率的に製造することが可能となった。
工程I-3-3は、上記式A-14で示される化合物中のアミノ基をアリールオキシカルボニル(COOAr)基、アセチル(Ac)基、2,2,2-トリクロロエトキシカルボニル(Troc)基、及びフタロイル(Phth)基から選択される保護基によって保護して、上記式A-15で示される化合物(式中、R5は、アリールオキシカルボニル(COOAr)基、アセチル(Ac)基、若しくは2,2,2-トリクロロエトキシカルボニル(Troc)基であり、かつ、R6は、水素原子であるか、又はR5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)を生成する工程である。上記のようなアミノ基の保護基を導入する目的は、目的化合物(式A-22で示される化合物)の製造のためには、当該アミノ基の保護基はアセチル基とする方が直線的なルートとなり、より効率的ではあるが、次工程I-4における式A-15で示される化合物と式A-16で示される化合物とのグリコシル化反応において、アセチル基で保護されたアミノ基(-NHAc基)が反応基質内に存在する場合、ルイス酸との相互作用により、目的のグリコシル化反応の著しい反応性の低下がみられ、過剰量の糖供与体が反応の完結に必要となるためである。したがって、上記グリコシル化反応時はグルコサミンの窒素上の一時的な保護基としてアリールオキシカルボニル(COOAr)基、2,2,2-トリクロロエトキシカルボニル(Troc)基、及びフタロイル(Phth)基から選択される保護基によって保護して、グリコシル化反応後に脱保護し、-NHAc基とすることにより、上記の不利益を回避することができる。また、上記保護基としては、アリールオキシカルボニル(COOAr)基を使用することが最も好ましい。アリールオキシカルボニルにおける「アリール(Ar)基」は、芳香族炭化水素において芳香環上の1個の水素原子を除去することにより生成される基を意味し、限定するものではないが、フェニル基、2-ナフチル基、1-ナフチル基、2-ピリジル基、3-ピリジル基、ニトロフェニル基、クロロフェニル基、フルオロフェニル基、ブロモフェニル基、ヨードフェニル基、メトキシフェニル基、及びC1~C4アルキルフェニル基が挙げられ、好ましくはフェニル基である。アリールオキシカルボニル(COOAr)基は、他の保護基よりもグリコシル化反応が良好に進行し、更にその後の脱保護反応では一般的な加水分解条件下、室温、1時間以内等の好適な条件での脱保護が可能であることが見出されている。
工程I-4は、上記式A-15で示される化合物を、以下の式A-16:
本工程は、上記式A-15で示される化合物を、上記式A-16で示される化合物とβ-1,4-グリコシド結合させることにより、式A-17で示される化合物を生成する工程である。上記のグリコシド結合工程は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例40又は66に示した方法によって行うことができる。
本発明の一態様において、上記式A-16で示される化合物は、以下の小工程V-1~V-11のようにして製造することができる。当該工程は、2分子の単糖をα-2,6-グリコシド結合させて二糖ブロックを合成する後述の小工程V-7を必須の小工程として含むものであるが、それ以外については、単糖又はオリゴ糖製造における常法を用いて、又はこのような常法を応用することによって、実施することができる。
小工程V-1は、以下の式G-1:
小工程V-2は、式G-2で示される化合物より、ベンジリデン保護基を脱離させることにより、以下の式G-3:
小工程V-3は、以下の式G-4:
小工程V-4は、式G-5で示される化合物において、1位の炭素に結合している水酸基以外の水酸基を選択的にアセチル基で保護することにより、以下の式G-6:
小工程V-5は、式G-6で示される化合物を、2,2,2-トリフルオロ-N-フェニルアセトイミドイルクロリド(TFPC)と反応させることにより、以下の式G-7:
小工程V-6は、式G-7で示される化合物のアセトアミド基中の窒素原子を、tert-ブトキシカルボニル基で保護することにより、以下の式G-8:
小工程V-7は、式G-8で示される化合物と、式G-3で示される化合物を、α-2,6-グリコシド結合させることにより、以下の式G-9:
小工程V-8は、式G-9で示される化合物より、tert-ブトキシカルボニル基を脱離させることにより、以下の式G-10:
小工程V-9は、式G-10で示される化合物の水酸基、並びにアセトアミド基中の窒素原子をアセチル基でさらに保護することにより、以下の式G-11:
小工程V-10は、式G-11で示される化合物において、D-ガラクトピラノシドの1位の炭素に結合しているアリル基を脱離させることにより、以下の式G-12:
小工程V-11は、式G-12で示される化合物を、2,2,2-トリフルオロ-N-フェニルアセトイミドイルクロリド(TFPC)と反応させることにより、上記式A-16で示される化合物を製造する工程である。本工程は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例28に示した方法によって行うことができる。
本工程I-4-1では、以下の精製方法により、式A-17で示される化合物を精製された形態で得ることができる。当該精製方法としては、上記式A-15で示される化合物と上記式A-16で示される化合物との反応を停止させた後、生成した上記式A-17で示される化合物及び夾雑物を含む水溶性有機溶媒に、疎水性担体及び水を添加して、該疎水性担体中に上記式A-17で示される化合物を吸着させ、次いで、ろ過及び疎水性担体を上記水溶性有機溶媒と水との混合溶液で洗浄することで、夾雑物の除去を行い、次いで、有機溶媒を用いて上記式A-17で示される化合物を疎水性担体から溶出させることにより、上記式A-17で示される化合物を精製することを含む。上記工程I-1-1における式A-6で示される化合物の精製方法で述べたのと同様、当該精製方法では、少量の疎水性担体を用いることで、オリゴ糖鎖の液相合成において、高品質のオリゴ糖を大量かつ効率的に製造することが可能となった。
本工程は、式A-17で示される化合物上のアミノ基の保護基並びに水酸基のアシル系保護基を除去して、式A-18で示される化合物を生成する工程である。上記のアミノ基の保護基の除去(脱保護)は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例43又は67に示した方法によって行うことができ、例えば、1,2-ジメトキシエタン及び水酸化カリウム、水酸化ナトリウム、又は水酸化リチウム水溶液を順次添加することによって行うことができるが、これらに限定されない。
本工程は、式A-18で示される化合物上のアミノ基をアセチル基で保護して、以下の式A-19:
本工程は、式A-19で示される化合物上のベンジルオキシ基からベンジル基を除去して、上記の式A-20で示される化合物を生成する工程である。上記のベンジル基の除去は、既知の方法を利用又は応用することにより行うことができるが、好適には、例えば、実施例45又は69に示した方法によって行うことができ、例えば、式A-19で示される化合物にN―メチルピロリドン、Pd/Cを加え、減圧→窒素置換及び水素加圧→解圧を行うことによって行うことができるが、これらに限定されない。
工程I-5は、上記式A-20で示される化合物を、アジドPEGリンカーである以下の式A-21:
本発明の一態様において、上記の式A-21で示される化合物は、粗製の式A-21で示される化合物を含む溶液に、以下の式E-1:
上記工程I-1~I-5を含む本発明の方法によって、目的の上記式A-22で示されるオリゴ糖が得られる。また、上記式A-22で示されるオリゴ糖の中間体は、該オリゴ糖の製造において有用であるが、該オリゴ糖の製造に限定されず、あらゆる用途に適用することが可能である。従って、本発明により、上記式A-22で示されるオリゴ糖及びその中間体が提供される。
本発明の一態様において、非還元末端にα2,6-シアル酸構造を有する2分岐型グリカン(即ち、式A-22で示されるオリゴ糖)を糖タンパク質等(特に、糖鎖リモデリング抗体若しくはそのFC領域含有分子、又は抗体薬物コンジュゲート)を合成する際のドナー分子として利用した、新規な糖タンパク質等及びその新規製造方法が提供される。以下に詳述するとおり、本発明の製造方法により得られた式A-22で示されるオリゴ糖は、糖タンパク質(特に、糖鎖リモデリング抗体若しくはFc領域含有分子、又は抗体薬物コンジュゲート)の製造のために使用することができる(「ワンポット法」を用いたオリゴ糖と抗体とのコンジュゲート方法については、WO2018/003983、WO2022/050300、PLoS ONE 2018,13, e0193534を参照のこと。また、オキサゾリン化法用いたオリゴ糖と抗体とのコンジュゲート方法については、WO2019/065964、WO2020/050406等を参照のこと)が、これに限定されず、その他の用途のために使用することもできる。
本工程は、目的の抗体に対して、公知の酵素反応を用いて抗体のアミノ酸配列297番目のアスパラギンに結合するN-結合型糖鎖(N297結合糖鎖)の還元末端キトビオース構造のGlcNAcβ1-4GlcNAc間のグリコシド結合を加水分解により切断し、糖鎖切断抗体を製造する工程である。目的の抗体(1d)を緩衝液(リン酸緩衝液等)中、0℃から40℃までにおいて、野生型Endo-S酵素等の加水分解酵素を用いて還元末端のキトビオース構造のGlcNAcβ1と4GlcNAc間のグリコシド結合の加水分解反応を実施する。反応時間は10分から72時間、好ましくは1時間から16時間である。野生型Endo-S酵素等は抗体(1d)100mgに対して、0.005mgから10mg、好ましくは0.01mgから3mgを用いる。反応終了後、反応スケールに適した精製方法
(アフィニティークロマトグラフィー、ハイロドキシアパタイトカラム、陽イオン交換クロマトグラフィー、マルチモードクロマトグラフィーなど)で精製し、(Fucα1,6)GlcNAc抗体(2d)を得る。
本工程は、D-1工程で得られた(Fucα1,6)GlcNAc抗体(2d)に対し、2種類のEndo酵素を使用した糖鎖転移反応により、式A‐22で示されるオリゴ糖を反応させ、糖鎖リモデリング抗体(3d)を含む反応液を準備した後に、適切な方法で精製することで、目的物である(3d)を製造する工程である。
-Lb-La-Lp-Lc-*
(ここで、アステリスクは、薬物Dと結合していることを示す)で示される。
-C(=O)-(CH2CH2)n2-C(=O)-、
-C(=O)-(CH2CH2)n2-CH2-C(=O)-、
-C(=O)-(CH2CH2)n2-C(=O)-NH-(CH2CH2)n3-C(=O)-、
-C(=O)-(CH2CH2)n2-C(=O)-NH-(CH2CH2)n3-CH2-C(=O)-、
-C(=O)-(CH2CH2)n2-C(=O)-NH-(CH2CH2O)n3-CH2-C(=O)-、
-(CH2)n4-O-C(=O)-、又は
-(CH2)n9-C(=O)-
(ここで、n2は1~3の整数を示し、n3は1~5の整数を示し、n4は0~2の整数を示し、n9は2~7の整数を示す)から選択されるいずれか一つを示す。
13C-NMR(125MHz,DMSO-d6)δ137.3,132.8,132.3,127.6,127.5,127.4,126.1,126.0,125.6,125.5,96.9,85.4,76.7,74.8,73.7,69.9,61.1.
HRMS(ESI-)[M-H]- calcd for C17H19O6:319.1187;found 319.1175.
なお、式C-3で示される化合物→式C-5で示される化合物の工程はワンポットで実施している。
4-メトキシフェニル 3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-4-O-{2,4,6-トリ-O-アセチル-3-O-[(ナフタレン-2-イル)メチル]-β-D-グルコピラノシル}-β-D-グルコピラノシド(式C-8で示される化合物)
得られた粗体の式C-8で示される化合物(350.00g)にメチルイソブチルケトン(2.1L)を加え、50℃で溶解した後、エチルシクロヘキサン(1.4L)を1時間かけて滴下した。4-メトキシフェニル 3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-4-O-{2,4,6-トリ-O-アセチル-3-O-[(ナフタレン-2-イル)メチル]-β-D-グルコピラノシル}-β-D-グルコピラノシド(式C-8で示される化合物)(70.00mg)を加えて1時間攪拌し、結晶の析出を確認後、エチルシクロヘキサン(4.9L)を2時間かけて滴下した。懸濁液を室温に冷却し、14.5時間撹拌後、析出した結晶を濾過し、結晶をメチルイソブチルケトン(350mL)及びエチルシクロヘキサン(1.4L)の混合溶液で洗浄した。得られた結晶を減圧下40℃で乾燥し、4-メトキシフェニル 3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-4-O-{2,4,6-トリ-O-アセチル-3-O-[(ナフタレン-2-イル)メチル]-β-D-グルコピラノシル}-β-D-グルコピラノシド(式C-8で示される化合物)(331.74g,収率94.8%)を得た。
13C-NMR(125MHz,CDCl3)δ171.0,169.5,169.1,155.6,151.0,138.7,138.2,135.5,133.9,133.4,133.2,128.7,128.4,128.23,128.20,128.06,128.05,127.9,127.2,126.5,126.2,125.7,123.5,118.9,114.5,100.7,97.8,80.6,78.5,76.8,75.2,74.8,74.1,73.8,73.1,72.1,69.9,67.8,62.2,55.78,55.75,21.1,20.94,20.85.
HRMS(ESI+)[M+H]+ calcd for C58H58NO16:1024.3750;found 1024.3706.
下記文献とスペクトルの一致を確認した。
文献1)Org.Biomol.Chem.,2018,16,4720-4727.
4-メトキシフェニル 3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-4-O-{3-O-[(ナフタレン-2-イル)メチル]-β-D-グルコピラノシル}-β-D-グルコピラノシド(式C-9で示される化合物)
4-メトキシフェニル 3,6-ジ-O-ベンジル-4-O-{4,6-O-ベンジリデン-3-O-[(ナフタレン-2-イル)メチル]-β-D-グルコピラノシル}-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式C-10で示される化合物)
4-メトキシフェニル 3,6-ジ-O-ベンジル-4-O-{4,6-O-ベンジリデン-3-O-[(ナフタレン-2-イル)メチル]-2-O-(トリフルオロメタンスルホニル)-β-D-グルコピラノシル}-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式C-11で示される化合物(式中、X1はTf基である))
4-メトキシフェニル 3,6-ジ-O-ベンジル-4-O-{4,6-O-ベンジリデン-3-O-[(ナフタレン-2-イル)メチル]-β-D-マンノピラノシル}-2-(2-カルボキシベンズアミド)-2-デオキシ-β-D-グルコピラノシド(式C-13で示される化合物)
※式C-12で示される化合物→式C-13で示される化合物の工程はワンポットで実施した。
※種晶に関しては、反応液を一部小分けし、濃縮して固体を析出させたものを使用した。
※本反応は、東京化成工業株式会社製(製品コード:T2694、純度:>90.0%)及びSigma-Aldrich社製(製品コード:86849、純度:>90%)の酢酸テトラブチルアンモニウムを使用すると良好に反応が進行する。その他のメーカーの酢酸テトラブチルアンモニウムを使用した際に、反応の遅延が発生したことがあるため、その場合は、酢酸セシウムを用いる代替法が好ましい(以下に詳細を記載)。
※式C-11で示される化合物→式C-12で示される化合物への変換は、酢酸セシウム(3当量)、ジメチルスルホキシド、50℃、24時間の条件においても実施可能であった。その後、同様の反応(式C-12で示される化合物→式C-13で示される化合物)、後処理を行うことで、式C-13で示される化合物を取得できた。
13C-NMR(125MHz,CDCl3)δ170.9,168.4,155.3,151.4,138.7,138.0,137.6,136.2,135.4,133.4,133.3.,132.2,132.1,130.7,130.3,129.2,128.6,128.49,128.45,128.11,128.07,128.0,127.89,127.87,127.8,126.8,126.4,126.3,126.2,125.8,118.6,114.7,101.7,100.4,99.1,78.3,76.7,76.4,75.1,73.7,73.3,72.5,69.9,69.4,68.5,67.0,55.8,54.4.
HRMS(ESI+)[M+H]+ calcd for C59H58NO14:1004.3852;found 1004.3873.
4-メトキシフェニル 3,6-ジ-O-ベンジル-4-O-{4,6-O-ベンジリデン-3-O-[(ナフタレン-2-イル)メチル]-β-D-マンノピラノシル}-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式C-14で示される化合物)
4-メトキシフェニル 3,6-ジ-O-ベンジル-4-O-{2-O-ベンジル-4,6-O-ベンジリデン-3-O-[(ナフタレン-2-イル)メチル]-β-D-マンノピラノシル}-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式C-15で示される化合物)
4-メトキシフェニル 3,6-ジ-O-ベンジル-2-デオキシ-4-O-{2,4-ジ-O-ベンジル-3-O-[(ナフタレン-2-イル)メチル]-β-D-マンノピラノシル}-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式A-4で示される化合物)
13C-NMR(125MHz,CDCl3)δ155.6,151.1,138.9,138.64,138.56,138.0,135.9,134.0,133.5,133.2,131.8,128.7,128.6,128.4,128.3,128.20,128.19,128.15,128.1,120.04,128.01,127.9,127.7,127.6,127.3,126.4,126.3,126.1,125.8,123.6,119.0,114.6,101.2,98.0,82.6,79.0,77.2,75.9,75.4,75.3,75.2,75.1,74.8,74.7,73.8,72.1,68.7,62.6,55.82,55.78,34.4,30.5.
HRMS(ESI-)[M+HCO2]- calcd for C67H64NO15:1122.4281;found 1122.4285.
4-メトキシフェニル 4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式F’-1で示される化合物)
4-メトキシフェニル 3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式A’-9で示される化合物)(50.0g,83.94mmol)の酢酸エチル(200mL)溶液にトリエチルアミン(11.04g,109.12mmol)、ジメチルアミノピリジン(0.31g,2.52mmol)及び無水酢酸(11.10g,109.12mmol)を加え、20℃で4時間攪拌した。反応終了をHPLCにより確認後、エタノール(500mL)及び水(150mL)を滴下した。スラリー液を1時間攪拌し、析出した結晶を濾過して、濾別した結晶をエタノールと水の混合液(150/50mL)で洗浄して、40℃で減圧乾燥し、4-メトキシフェニル 4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式F’-1で示される化合物)(49.0g,収率91%)を白色結晶として得た。
13C-NMR(125MHz,CDCl3)δ169.6,155.3,150.6,137.8,137.5,133.9,128.2,128.0,127.7,127.7,127.5,127.4,123.3,118.4,114.3,97.4,76.8,73.9,73.7,73.5,72.2,69.4,55.4,55.3,20.8.
HRMS(ESI+)[M+H]+ calcd for C37H36NO9:638.2385;found 638.2401.
4-メトキシフェニル 4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-β-D-グルコピラノシド(式F’-1で示される化合物)(49.0g,76.84mmol)のジクロロメタン(392mL)、ヘキサフルオロ2-プロパノール(245mL)及び水(25mL)の溶液に、25℃以下で[ビス(トリフルオロアセトキシ)ヨード]ベンゼン(46.3g,107.58mmol)を加え、同温にて4時間攪拌した。反応終了をHPLCにより確認後、酢酸エチル(1225mL)を加えて、氷冷した後、炭酸水素ナトリウム(24.5g)及び亜硫酸ナトリウム(24.5g)を溶解した水(490mL)を注加し、分液して、有機層を得た。得られた有機層を炭酸水素ナトリウム(24.5g)及び亜硫酸ナトリウム(24.5g)を溶解した水(490mL)で再度洗浄し、さらに20%食塩水(245g)で洗浄した。得られた有機層を490mLまで減圧濃縮し(濃縮中に結晶の析出を確認した)、ヘプタン(735mL)を滴下した。得られたスラリー液を0℃-5℃に冷却後、同温にて1時間攪拌し、析出した結晶を濾過した。濾別した結晶を0℃-5℃の酢酸エチルとヘプタンの混合液(39/118mL)で洗浄して、40℃で減圧乾燥し、4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-D-グルコピラノシド(式F-2で示される化合物)(37.5g,収率92%)を白色結晶として得た。
13C-NMR(100MHz,CDCl3)δ169.8,168.1,137.7,137.7,134.0,131.6,128.4,128.2,128.0,127.8. 127.7,127.5,123.4,116.2,92.9,73.9,73.7,73.5,72.2,69.3,57.1,20.9.
HRMS(ESI-)[M-H]- calcd for C30H28NO8:530.1820;found 530.1841.
4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-O-[2,2,2-トリフルオロ-N-フェニルエタンイミドイル]-β-D-グルコピラノシド(式A-12で示される化合物)
4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-D-グルコピラノシド(式F-2で示される化合物)(20.0g,37.63mmol)を500mLナスフラスコに加え、ジクロロメタン(200mL)及びモレキュラーシーブ4A粉末(10μm以下,10.0g)を加えた。窒素下、0℃にてN-メチルイミダゾール(3.40g,41.39mmol)及び2,2,2-トリフルオロ-N-フェニルアセトイミドイルクロリド(8.20g,39.51mmol)を順次加え、同温にて18時間撹拌した。HPLCにより反応終了を確認した後、反応液をフィルターろ過し、ジクロロメタン(100mL)にて洗浄した。ろ液をジクロロメタンにて充填した中性シリカゲルパッド(シリカゲル60N,関東化学製,粒子径:40-50μm,60g)でろ過し、100mLずつ分取した。シリカゲルパッドをジクロロメタン(400mL,100mLずつ分取)及び酢酸エチル/ジクロロメタン(1:4,400mL,100mLずつ分取)にて洗浄し、選定フラクションを、液量が40mLに達するまで濃縮した。トルエン(200mL)を加え、再度液量が40mLに達するまで濃縮、さらにトルエン(200mL)を加え、液量が40mLに達するまで濃縮し、粗体の4-O-アセチル-3,6-ジ-O-ベンジル-2-デオキシ-2-(1,3-ジオキソ-1,3-ジヒドロ-2H-イソインドール-2-イル)-O-[2,2,2-トリフルオロ-N-フェニルエタンイミドイル]-β-D-グルコピラノシド(式A-12で示される化合物)をトルエン溶液として得た。このものを次工程にそのまま使用した。
13C-NMR(125MHz,METHANOL-D4)δ62.74,69.36,70.21,71.08,71.51,72.49,99.46,117.47,135.69.
MS(ESI)m/z:221(M+H)+,219(M-H)-.
MS(ESI)m/z:309(M+H)+,307(M-H)-.
プロプ-2-エン-1-イル 4,6-О-ベンジリデン-α-D-ガラクトピラノシド(式G-1で示される化合物)(30.0g,97.30mmol)のピリジン(150mL)溶液に、塩化ベンゾイル(47.87g,340.54mmol)を40℃以下で滴下し、同温で2時間攪拌した。反応終了をHPLCにて確認後、20℃-30℃に冷却し、エタノール(450mL)を注加後、水(300mL)を30分間かけて滴下した。スラリー液を20℃-30℃で1時間攪拌後、析出した結晶を濾過し、濾別した結晶をエタノールと水の混合液(75/75mL)で洗浄して、40℃で減圧乾燥し、プロプ-2-エン-1-イル 2,3-ジ-О-ベンゾイル-4,6-О-ベンジリデン-α-D-ガラクトピラノシド(式G-2で示される化合物)(47.9g,収率95%)を白色結晶として得た。
13C-NMR(125MHz,CDCl3)δ166.1,165.8,137.5,133.4,133.2,133.1,129.8,129.7,129.5,129.4,128.8,128.3,128.1,126.1,117.5,100.6,96.2,74.2,69.3,69.1,68.7,68.6,62.4.
HRMS(ESI+)[M+H]+ calcd for C30H29O8:517.1857;found 517.1880.
プロプ-2-エン-1-イル 2,3-ジ-О-ベンゾイル-4,6-О-ベンジリデン-α-D-ガラクトピラノシド(式G-2で示される化合物)(47.1g,91.18mmol)のアセトニトリル(377mL)溶液を45℃に加温し、水(24mL)及び濃塩酸(9.2g,91.18mmol)を加え、同温で30分間攪拌した。水(353mL)を45℃-50℃で3時間かけて滴下後、さらに30分間攪拌した。反応終了をHPLCにより確認後、酢酸ナトリウム(11.22g,136.78mmol)を加え、酢酸エチル(942mL)及び水(471mL)を注加し、25℃以下に冷却後、分液して、有機層を得た。得られた有機層を水(471mL)で二回洗浄後、20%食塩水(236mL)でさらに洗浄した。有機層を141mLまで減圧濃縮し、トルエン(707mL)を加え、再度、141mLまで減圧濃縮した。得られた濃縮液にトルエン(236mL)を加え、141mLまで減圧濃縮した。濃縮液を0℃-5℃に冷却後、0℃-5℃に冷却した中性シリカゲル(シリカゲル60N,関東化学製、粒子径:40-50μm,141g)を含むトルエン(330mL)スラリー液を注加し、同温で15分間攪拌して生成物をシリカゲルに吸着させた後、濾過した。生成物を含むシリカゲル固相を0℃-5℃のトルエン(942mL)で洗浄後(トルエン洗浄時のろ液は廃棄)、シクロペンチルメチルエーテル(707mL)で目的物をシリカゲルより脱着させ、プロプ-2-エン-1-イル 2,3-ジ-О-ベンゾイル-α-D-ガラクトピラノシド(式G-3で示される化合物)のシクロペンチルメチルエーテル溶液(定量値36.2g,定量収率93%)を得た。本溶液を次工程に使用した。
5-アセトアミド-3,5-ジデオキシ-D-グリセロ-D-ガラクト-ノン-2-ウロピラノソニック酸(式G-4で示される化合物)(40.1g,129.66mmol)及びオルトギ酸メチル(15.60mL,142.59mmol)のメタノール(321mL)溶液に硫酸(1.0g,10.20mmol)を加え、40℃に加温し、3時間攪拌した。反応終了をHPLCにより確認後、25℃に冷却し、ジメチルアセトアミド(40mL)を加え、160mLまで減圧濃縮した。得られた濃縮液を15℃に温度調整し、水(20mL)及び酢酸エチル(722mL)を注加して、25℃で1時間攪拌後、スラリー液を0℃-5℃に冷却し、同温で2時間攪拌した。析出した結晶を濾過し、濾別した結晶を0℃-5℃の酢酸エチル(80mL)で洗浄して、40℃で減圧乾燥し、メチル 5-アセトアミド-3,5-ジデオキシ-D-グリセロ-D-ガラクト-ノン-2-ウロピラノソナート 一水和物(式G-5で示される化合物)(41.1g,収率93%)を白色結晶として得た。
13C-NMR(125MHz,CD3OD)δ175.2,175.1,171.8,96.6,72.1,72.0,71.6,70.1,67.9,64.8,54.4,54.3,53.2,40.7,22.7,22.7.
HRMS(ESI+)[M+H]+ calcd for C12H22NO9:324.1289;found 324.1288.
メチル 5-アセトアミド-3,5-ジデオキシ-D-グリセロ-D-ガラクト-ノン-2-ウロピラノソナート 一水和物(式G-5で示される化合物)(40.3g,118.07mmol)のアセトニトリル(403mL)スラリー液を25℃に温度調整し、無水酢酸(60.27g,590.36mmol)及びパラトルエンスルホン酸一水和物(1.12g,5.89mmol)を加え、25℃で24時間攪拌した。その後、反応液を15℃に冷却し、無水酢酸(12.05g,118.03mmol)を加え、同温で47時間攪拌した。HPLCにより反応終了を確認後、メタノール(40mL)を加え、25℃に温度調整し、同温にて2時間攪拌した。次に、酢酸ナトリウム(0.97g,11.82mmol)を加え、更に同温にて1時間攪拌した。反応液を120mLまで減圧濃縮し、0℃-5℃に冷却後、酢酸エチル(403mL)及び水(161mL)を注加し、0℃-5℃攪拌下、トリエチルアミンを加えて、pHを7.0に調整した。分液により得られた有機層を10%食塩水(121mL)で2回洗浄し、200mLまで減圧濃縮した。濃縮液に酢酸エチル(605mL)を加え、再度、200mLまで減圧濃縮した。濃縮液に酢酸エチル(40mL)を加え、種晶を接種し、25℃で4時間攪拌後、ヘプタン(302mL)を30分間かけて滴下した。スラリー液を25℃で2時間攪拌後、析出した結晶を濾過し、濾別した結晶を酢酸エチルとヘプタンの混合液(67/135mL)で洗浄して、35℃で減圧乾燥し、メチル 5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-D-グリセロ-D-ガラクト-ノン-2-ウロピラノソナート(式G-6で示される化合物)(44.1g,収率76%)を白色結晶として得た。
13C-NMR(125MHz,CDCl3)δ171.5,171.1,170.8,170.3,170.2,168.9,94.9,72.1,71.4,69.1,68.3,62.5,53.2,49.1,36.1,23.0,21.0,20.8,20.7,20.7.
HRMS(ESI+)[M+H]+ calcd for C20H30NO13:492.1712;found 492.1712.
メチル 5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-2-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-グリセロ-β-D-ガラクト-ノン-2-ウロピラノソナート(式G-7で示される化合物)
メチル 5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-D-グリセロ-D-ガラクト-ノン-2-ウロピラノソナート(式G-6で示される化合物)(44.0g,89.53mmol)及びモレキュラーシーブス4A粉末(粉末粒径10μm以下)(22g)のジクロロメタン(352mL)スラリー液を20℃に温度調整し、同温で30分間攪拌後、2,2,2-トリフルオロ-N-フェニルアセトイミドイルクロリド(26.02g,125.35mmol)を加えた。続いて、N-メチルイミダゾール(11.03g,134.33mmol)を滴下し、20℃で7.5時間攪拌した。HPLCにより反応終了を確認後、反応液を濾過し、ジクロロメタン(88mL)で洗浄して、濾液を得た。得られた濾液を0℃に冷却し、冷水(440mL)を加え、0℃-5℃攪拌下、トリエチルアミンを加えて、pHを7.5に調整した。0℃-5℃にて30分間攪拌後、分液し、得られた有機層を冷水(440mL)で2回、冷却した20%食塩水(220mL)で洗浄し、88mLまで減圧濃縮した。濃縮液に酢酸エチル(440mL)を加え、再度、88mLまで減圧濃縮した。濃縮液にt-ブチルメチルエーテル(308mL)を加え、種晶を接種し、20℃で4時間攪拌した。得られたスラリー液にヘプタン(264mL)を1時間かけて滴下し、同温にて2時間攪拌後、析出した結晶を濾過し、濾別した結晶をt-ブチルメチルエーテルとヘプタンの混合液(132/88mL)で洗浄して、35℃で減圧乾燥し、メチル 5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-2-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-グリセロ-β-D-ガラクト-ノン-2-ウロピラノソナート(式G-7で示される化合物)(39.5g,収率67%)を白色結晶として得た。
13C-NMR(125MHz,CDCl3)δ171.0,170.7,170.4,170.2,170.1,165.3,142.6,141.0(q,2JC-F=36.0Hz),128.8,124.6,119.0,115.1(q,1JC-F=284.4Hz),99.7,73.6,71.9,68.3,68.0,62.4,53.1,48.6,35.6,23.0,20.8,20.8,20.7,20.3.
HRMS(ESI+)[M+NH4]+ calcd for C28H37F3N3O13:680.2273;found 680.2314.
メチル 4,7,8,9-テトラ-O-アセチル-5-[アセチル(tert-ブトキシカルボニル)アミノ]-3,5-ジデオキシ-2-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-グリセロ-β-D-ガラクト-ノン-2-ウロピラノソナート(式G-8で示される化合物)
メチル 5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-2-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-グリセロ-β-D-ガラクト-ノン-2-ウロピラノソナート(式G-7で示される化合物)(39.0g,58.86mmol)のテトラヒドロフラン(390mL)溶液に2炭酸ジ-tert-ブチル(27.05g,123.94mmol)及びジメチルアミノピリジン(1.80g,14.73mmol)を加え、還流温度まで加温した。還流下で30分間攪拌後、HPLCにより反応終了を確認し、反応液を117mLまで減圧濃縮した。濃縮液にトルエン(195mL)を加え、再度、117mLまで減圧濃縮した。濃縮液をシリカゲル充填した漏斗(シリカゲル60N,関東化学製、粒子径:40-50μm、117g、トルエン湿式充填)を用いて、濾過し、トルエン・酢酸エチル混液(8/2)(975mL)にて洗浄して、濾液を得た。得られた濾液を減圧濃縮し(重量59gとなるまで)、シクロペンチルメチルエーテル(23mL)を加えた。溶液を20℃に温度調整し、ヘプタン(156mL)を15分間かけて滴下し、同温にて1時間攪拌した。結晶の析出を確認後、ヘプタン(312mL)を1時間かけて滴下し、析出した結晶を濾過し、濾別した結晶をヘプタン(78mL)で洗浄して、35℃で減圧乾燥し、メチル 4,7,8,9-テトラ-O-アセチル-5-[アセチル(tert-ブトキシカルボニル)アミノ]-3,5-ジデオキシ-2-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-グリセロ-β-D-ガラクト-ノン-2-ウロピラノソナート(式G-8で示される化合物)(37.0g,収率82%)を白色結晶として得た。
注)ca.1/4異性体混合物として検出された。Major isomer:δ7.27(t,J=8.9Hz,2H),7.09(t,J=7.2Hz,1H),6.73(d,J=8.0Hz,2H),5.75-5.65(m,1H),5.31(d,J=4.6Hz,1H),5.18-5.14(m,1H),5.15(d,J=6.0Hz,2H),4.54(dd,J=12.0,2.0Hz,1H),4.08(dd,J=12.6,6.9Hz,1H),3.84(s,3H),2.90(dd,J=13.7,5.2Hz,1H),2.39(s,3H),2.25(dd,J=13.7,11.2Hz,1H),2.09(s,3H),2.07(s,3H),1.99(s,3H),1.77(s,3H),1.62(s,9H).Minor isomer:δ inter alia 6.76(d,J=8.0Hz,2H),5.85-5.80(m,1H),5.29-5.25(m,1H),5.22-5.19(m,1H),4.44(d,J=11.0Hz,1H),4.15-4.11(m,1H),3.03(dd,J=14.0,5.0Hz,1H),2.41(s,3H),2.12(s,3H),2.00(s,3H),1.88(s,3H),1.74(s,3H),1.54(s,9H).13C-NMR(125MHz,CDCl3) Mixture:δ173.7,170.4,170.2,170.0,169.9,165.4,151.7,142.8,128.7,124.5,119.1,100.6,85.2,72.8,71.3,67.7,65.9,62.0,53.1,52.0,36.7,27.9,27.7,26.6,20.8,20.7,20.6,20.3.HRMS(ESI+)[M+NH4]+ calcd for C33H45F3N3O15:780.2797;found 780.2801.
プロプ-2-エン-1-イル 2,3-ジ-O-ベンゾイル-6-O-{4,7,8,9-テトラ-O-アセチル-5-[アセチル(tert-ブトキシカルボニル)アミノ]-3,5-ジデオキシ-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル}-α-D-ガラクトピラノシド(式G-9で示される化合物)
プロプ-2-エン-1-イル 2,3-ジ-О-ベンゾイル-α-D-ガラクトピラノシド(式G-3で示される化合物)のシクロペンチルメチルエーテル溶液(定量値31.46g,73.43mmol)を105mLまで減圧濃縮した後、メチル 4,7,8,9-テトラ-O-アセチル-5-[アセチル(tert-ブトキシカルボニル)アミノ]-3,5-ジデオキシ-2-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-グリセロ-β-D-ガラクト-ノン-2-ウロピラノソナート(式G-8で示される化合物)(35.0g,45.89mmol)のシクロペンチルメチルエーテル(175mL)溶液に加えた。次に、得られた混合溶液にシクロペンチルメチルエーテルを加え、全量を350mLに調整した(式G-3で示される化合物及び式G-8で示される化合物のシクロペンチルメチルエーテル混合溶液)。別容器にシクロペンチルメチルエーテル(525mL)及びモレキュラーシーブス4A粉末(粉末粒径10μm以下)(17.5g)を加え、-60℃に冷却後、トリフルオロメタンスルホン酸トリメチルシリル(4.2mL,23.24mmol)を加えた。この溶液に対し、-60℃、強攪拌下、式G-3で示される化合物及び式G-8で示される化合物のシクロペンチルメチルエーテル混合溶液を4.5時間かけて滴下し、同温にて2時間攪拌した。HPLCにより反応終了を確認した後、トリエチルアミン(4.5mL,32.12mmol)を加え、反応液を0℃まで昇温した。その後、セライト545(35.00g)を加えた後、反応液を濾過し、シクロペンチルメチルエーテル(175mL)で洗浄した。ろ液に水(350mL)を加え、分液した。次に、有機層に0.5N塩酸水(350mL)を加え、20℃で2時間攪拌した。HPLCにより副生成物の分解を確認した後、分液して有機層を得た。有機層を水(350mL)及び20%食塩水(175mL)で洗浄後、70mLまで減圧濃縮した。濃縮液にトルエン(700mL)を加え、70mLまで減圧濃縮した。再度、濃縮液にトルエン(700mL)及び中性シリカゲル(シリカゲル60N,関東化学製、粒子径:40-50μm,158g)を加え、20℃で30分間攪拌した。生成物をシリカゲルに吸着させた後、濾過し、生成物を含むシリカゲル固相をトルエン(1575mL)で洗浄後(トルエン洗浄時のろ液は廃棄)、酢酸エチル(875mL)で目的物をシリカゲルより脱着させた。得られた酢酸エチル溶液を70mLまで減圧濃縮し、トルエン(175mL)を加え、再度、70mLまで減圧濃縮して、プロプ-2-エン-1-イル 2,3-ジ-O-ベンゾイル-6-O-{4,7,8,9-テトラ-O-アセチル-5-[アセチル(tert-ブトキシカルボニル)アミノ]-3,5-ジデオキシ-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル}-α-D-ガラクトピラノシド(式G-9で示される化合物)のトルエン溶液を得た。本溶液を次工程に使用した。
プロプ-2-エン-1-イル 6-O-{5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル}-2,3-ジ-O-ベンゾイル-α-D-ガラクトピラノシド(式G-10で示される化合物)
実施例24で取得したプロプ-2-エン-1-イル 2,3-ジ-O-ベンゾイル-6-O-{4,7,8,9-テトラ-O-アセチル-5-[アセチル(tert-ブトキシカルボニル)アミノ]-3,5-ジデオキシ-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル}-α-D-ガラクトピラノシド(式G-9で示される化合物)のトルエン溶液に、ジクロロメタン(525mL)及びトリフルオロメタンスルホン酸銅(II)(8.30g,22.95mmol)を加え、40℃で昇温し、同温にて2時間攪拌した。HPLCにより反応終了を確認した後、25℃に冷却し、70mLまで減圧濃縮した。濃縮液に酢酸エチル(525mL)を加え、5%食塩水(350mL)で3回洗浄後、有機層にヘプタン(263mL)を加え、20%メタノール水(525mL)で4回洗浄した。HPLCにより、グリコシル化反応で副生した化合物8のβ脱離体由来の不純物が水層に除去されていることを確認後、有機層を70mLまで減圧濃縮した。濃縮液に酢酸イソプロペニル(525mL)を加え、350mLまで減圧濃縮して、プロプ-2-エン-1-イル 6-O-{5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル}-2,3-ジ-O-ベンゾイル-α-D-ガラクトピラノシド(式G-10で示される化合物)の酢酸イソプロペニル溶液を得た。本溶液を次工程に使用した。
プロプ-2-エン-1-イル 4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-α-D-ガラクトピラノシド(式G-11で示される化合物)
実施例25で取得したプロプ-2-エン-1-イル 6-O-{5-アセトアミド-4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル}-2,3-ジ-O-ベンゾイル-α-D-ガラクトピラノシド(式G-10で示される化合物)の酢酸イソプロペニル溶液に、パラトルエンスルホン酸一水和物(0.88g,4.62mmol)を加え、還流温度まで昇温し(内温90℃付近)、同温にて3時間攪拌した。HPLCにより反応終了を確認した後、25℃に冷却し、トリエチルアミン(0.95mL,6.85mmol)を加え、70mLまで減圧濃縮した。濃縮液にトルエン(350mL)を加え、再度、70mLまで減圧濃縮した。濃縮液にトルエン(630mL)を加え、中性シリカゲル(シリカゲル60N,関東化学製、粒子径:40-50μm,123g)を加えて、同温で30分攪拌して生成物をシリカゲルに吸着させた後、濾過した。生成物を含むシリカゲル固相をトルエン(1925mL)及びトルエン/酢酸エチル混液(97/3,1400mL)で洗浄後(洗浄時のろ液は廃棄)、生成物を含むシリカゲル固相から酢酸エチル(1050mL)で目的物を脱着させ、得られた酢酸エチル溶液を減圧濃縮することにより、プロプ-2-エン-1-イル 4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-α-D-ガラクトピラノシド(式G-11で示される化合物)(30.1g,収率67%(式G-8で示される化合物基準))を白色泡沫固体として得た(0.42当量のトルエン(約4重量%)を含む)。
13C-NMR(125MHz,CDCl3)δ174.5,173.6,170.5,170.1,169.9,169.8,169.6,167.3,166.0,165.5,133.5,133.3,133.1,129.8,129.5,129.4,128.4,128.3,117.5,98.6,95.5,77.2,69.8,68.9,68.6,68.6,68.3,68.3,67.5,67.0,66.7,62.4,61.8,57.0,52.9,38.7,27.9,25.9,21.0,20.9,20.7,20.7,20.6.
HRMS(ESI+)[M+H]+ calcd for C47H56NO22:986.3288;found 986.3277.
得られた化合物について、下記文献とスペクトルの一致を確認した:文献4)J.Org.Chem.2016,81,10600-10616.
4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-D-ガラクトピラノース(式G-12で示される化合物)
プロプ-2-エン-1-イル 4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-α-D-ガラクトピラノシド(式G-11で示される化合物)(29.00g,29.41mmol)、1,3-ジメチルバルビツール酸(9.19g,58.86mmol)、及びトリフェニルホスフィン(2.31g,8.81mmol)のメタノール溶液(290mL)を減圧、窒素置換を5回繰り返して、脱気操作を行った後、酢酸パラジウム(II)(0.66g,2.94mmol)を加え、40℃で12時間攪拌した。HPLCにより反応終了を確認した後、トルエン(580mL)及び水(1015mL)を加え、分液し、有機層を得た。有機層を20%メタノール水(580mL)で4回洗浄し、1,3-ジメチルバルビツール酸を水層に除去した後、58mLまで減圧濃縮し、トルエン(435mL)を加え、再度、58mLまで減圧濃縮した。濃縮液にトルエン(383mL)、クロロホルム(197mL)、及び中性シリカゲル(シリカゲル60N,関東化学製、粒子径:40-50μm,145g)を加えて、30分間攪拌して生成物をシリカゲルに吸着させた後、濾過した。生成物を含むシリカゲル固相をトルエン、クロロホルム混液(2/1,4350mL)で洗浄後(洗浄時のろ液は廃棄)、生成物を含むシリカゲル固相から酢酸エチル(870mL)で目的物を脱着させた。得られた酢酸エチル溶液にSHシリカゲル(29.00g)を加え、30分間攪拌後、濾過して、酢酸エチル(145mL)で洗浄し、目的物を含む酢酸エチル溶液を得た。得られた溶液を58mLまで減圧濃縮し、トルエン(145mL)を加えて、再度58mLまで減圧濃縮した。濃縮液をシリカゲルカラム精製し(シリカゲル60N,関東化学製、粒子径:40-50μm,290g,移動相 ヘキサン/酢酸エチル 50/50~30/70)、選定したフラクションを29mLまで減圧濃縮した。濃縮液に、酢酸エチル(290mL)及び活性炭(白鷺A,14.5g)を加え、30分間攪拌後、濾過して、酢酸エチル(87mL)で洗浄し、目的物を含む精製酢酸エチル溶液を得た。得られた溶液を減圧濃縮し、4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-D-ガラクトピラノース(式G-12で示される化合物)(18.70g,収率67%)を白色泡沫固体として得た。
13C-NMR(125MHz,CDCl3)α/β mixture:174.5,173.8,173.6,171.7,171.0,170.5,170.3,170.3,169.9,169.8,169.8,169.6,167.6,167.3,166.3,166.0,165.6,165.4,133.3,133.2,133.2,133.1,129.8,129.7,129.5,129.4,129.4,129.3,129.0,128.4,128.3,99.1,98.8,95.9,91.0,72.2,71.6,71.5,69.9,69.9,69.3,69.3,68.8,68.5,68.1,67.5,67.5,67.3,67.0,66.6,62.9,62.6,62.4,60.3,57.2,56.8,53.0,52.9,38.6,38.3,27.9,27.8,26.1,25.7,21.0,20.9,20.8,20.7,20.7,20.6,20.5.
HRMS(ESI-)[M+HCOO]- calcd for C45H52NO24:990.2885;found 990.2873.
4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-D-ガラクトピラノース(式G-12で示される化合物)
実施例27-1に代えて、上記式G-12で示される化合物を本実施例のように合成した。プロプ-2-エン-1-イル 4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-α-D-ガラクトピラノシド(式G-11で示される化合物)(5.0g,5.07mmol)のテトラヒドロフラン溶液(25mL)を減圧、窒素置換を3回繰り返して、脱気操作を行った後、カルボニルクロロヒドリドトリス(トリフェニルホスフィン)ルテニウム(II)(24.1mg,0.03mmol)を加え、55-60℃で3時間攪拌した。HPLCにより異性化反応終了を確認した後、20-25℃に冷却し、水(5mL)及び1,3―ジブロモ-5,5-ジメチルヒダントイン(870mg,3.04mmol)を加え(テトラヒドロフラン5mLにて洗い込み)、20-30℃で1時間攪拌した。HPLCにより反応終了を確認した後、亜硫酸ナトリウム(255mg)を含む1%食塩水(25mL)及び酢酸エチル(50mL)を加え、攪拌後、分液した。得られた有機層を5%食塩水(25mL)で洗浄し、有機層に精製白鷺(2.0g)を加え、1時間攪拌後、ろ過して、酢酸エチル(50mL)で洗浄した。得られた濾液を6.5mLまで減圧濃縮し、酢酸エチル(25mL)を加え、脱水を目的に、再度6.5mLまで減圧濃縮した。2-プロパノール(100mL)を加え、種晶を接種し、16時間攪拌して結晶の析出を確認後、得られたスラリー液を30mLまで減圧濃縮した。スラリー液を0-5℃に冷却し、ろ過して、得られた固体を0-5℃の2-プロパノール(25mL)で洗浄し、35℃で減圧乾燥して、4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-D-ガラクトピラノース(式G-12で示される化合物)(3.76g,収率78%)を白色結晶として得た(α/β混合物)。
13C-NMR(125MHz,CDCl3)α/βmixture:174.5,173.8,173.6,171.7,171.0,170.5,170.3,170.3,169.9,169.8,169.8,169.6,167.6,167.3,166.3,166.0,165.6,165.4,133.3,133.2,133.2,133.1,129.8,129.7,129.5,129.4,129.4,129.3,129.0,128.4,128.3,99.1,98.8,95.9,91.0,72.2,71.6,71.5,69.9,69.9,69.3,69.3,68.8,68.5,68.1,67.5,67.5,67.3,67.0,66.6,62.9,62.6,62.4,60.3,57.2,56.8,53.0,52.9,38.6,38.3,27.9,27.8,26.1,25.7,21.0,20.9,20.8,20.7,20.7,20.6,20.5.
HRMS(ESI-)[M+HCOO]- calcd for C45H53NO24:991.2958;found 990.2789.
カラム:CAPCELL PAK ADME φ4.6×150mm,膜厚3μm
波長:220nm
オーブン:40℃
溶離液: (A)0.1%トリフルオロ酢酸水溶液、(B)アセトニトリル
グラジエント: 0-150m分 (B)濃度40%
150.1分 (B)濃度95%
155分 (B)濃度95%
155.1分 (B)濃度40%
160分 (B)濃度40%
流速:1mL/分
インジェクション:5μL
4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-1-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-ガラクトピラノース(式A-16で示される化合物)
4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-D-ガラクトピラノース(式G-12で示される化合物)(20.0g,21.1mmol)を500mLナスフラスコに加え、ジクロロメタン(200mL)及びモレキュラーシーブ4A粉末(10μm以下,10.0g)を加えて、0℃まで冷却した。窒素下、同温にてN-メチルイミダゾール(1.91g,23.3mmol)及び2,2,2-トリフルオロ-N-フェニルアセトイミドイルクロリド(4.39g,21.1mmol)を加え、室温に昇温して24時間撹拌した。HPLCにより反応終了を確認した後、反応液をフィルターろ過し、ジクロロメタン(100mL)にて洗浄した。ろ液をジクロロメタンにて充填した中性シリカゲルパッド(シリカゲル60N,関東化学製,粒子径:40-50μm,60g)でろ過し、100mLずつ分取した。シリカゲルパッドを酢酸エチル/ジクロロメタン(1:9,1000mL,200mLずつ分取)にて洗浄し、選定フラクションを減圧濃縮することで、4-O-アセチル-2,3-ジ-O-ベンゾイル-6-O-[4,7,8,9-テトラ-O-アセチル-3,5-ジデオキシ-5-(ジアセチルアミノ)-1-メチル-D-グリセロ-α-D-ガラクト-ノン-2-ウロピラノシル]-1-O-(2,2,2-トリフルオロ-N-フェニルエタンイミドイル)-D-ガラクトピラノース(式A-16で示される化合物)(20.1g,収率85%)を白色アモルファスとして得た。
HRMS(ESI+)[M+NH4]+ calcd for C52H59F3N3O22:1134.3537;found 1134.3564.
下記文献とスペクトルの一致を確認した。文献4)J.Org.Chem.2016,81,10600-10616.
13C-NMR(125MHz,CDCl3)δ155.6,151.0,138.54,138.46,138.3,137.8,134.1,131.8,128.8,128.6,128.3,128.21,128.19,128.15,128.1,128.0,127.5,127.4,123.6,118.9,114.6,101.5,97.9,79.1,78.5,77.3,76.7,75.6,75.4,75.3,74.9,74.8,74.4,73.9,68.5,62.5,55.8.
HRMS(ESI-)[M-H]-calcdforC55H54NO13:936.3601;found936.3592.
下記文献とスペクトルの一致を確認した。
文献1)Org.Biomol.Chem.,2018,16,4720-4727.
・Entry2:HFIPを用いることで高収率で反応が進行した。
・Entry3,4:酸及び水素化分解による脱保護は低収率の結果となった。
H),5.54(d,J=8.4Hz,1H),5.49(dd,J=3.2,2.0Hz,1H),5.34(brt,J=3.2Hz,1H),5.13(brd,J=1.6Hz,1H),5.05(d,J=12.0Hz,1H),4.91-4.78(m,6H),4.69(d,J=11.2Hz,1H),4.63-4.55(m,6H),4.48-4.32(m,9H),4.21(t,J=11.2Hz,2H),4.07(t,J=9.6Hz,1H),4.00-3.73(m,9H),3.70(s,3H),3.68-3.51(m,8H),3.44(brd,J=8.0Hz,1H),3.21(brd,J=9.6Hz,1H),2.10(s,3H),1.86(s,3H).
13C-NMR(125MHz,CDCl3)δ170.2,170.0,155.4,151.0,138.9,138.7,138.6,138.5,138.2,138.1,138.0,137.9,133.7,131.7,128.7,128.5,128.4,128.3,128.2,127.9,127.9,127.8,127.7,127.6,127.5,127.5,127.1,123.4,118.8,114.4,101.9,99.8,98.5,97.7,81.3,79.5,78.2,78.0,77.9,76.9,76.6,75.2,75.2,75.1,74.9,74.7,74.5,74.4,74.2,74.2,73.6,73.5,73.4,72.4,72.0,71.9,71.4,69.4,69.4,68.8,68.8,68.3,66.7,55.7,21.2,20.9.
HRMS(ESI+)[M+NH4]+calcd for C113H119N2O25:1903.8096;found1903.8075.
13C―NMR(125MHz,CDCl3)σ170.1,167.9,149.5,138.6,138.6,138.5,138.4,138.3,137.9,137.9,137.7,133.6,131.5,128.6,128.3,128.2,128.2,128.0,127.9,127.8,127.7,127.6,127.4,127.4,127.3,126.9,123.1,116.1,101.0,99.5,97.9,92.8,80.9,78.3,78.0,77.8,76.0,74.9,74.9,74.8,74.5,74.2,74.1,74.0,73.9,73.5,73.4,73.2,72.2,71.8,71.6,71.2,69.1,68.6,68.3,68.2,66.5,57.5,21.0,20.8.
HRMS(ESI+)[M+NH4]+calcd for C106H113N2O24 +:1798.7711;found 1798.7690.
13C―NMR(125MHz,CDCl3)σ171.1,170.0,169.8,138.6,138.5,138.4,138.3,137.9,137.9,137.8,137.8,137.7,137.6,133.6,131.4,129.0,128.6,128.5,128.4,128.3,128.3,128.2,128.1,128.0,127.9,127.8,128.8,127.7,127.7,127.7,127.6,127.5,127.5,127.4,127.3,127.3,126.9,125.2,123.3,101.6,99.6,98.2,81.1,78.6,78.0,77.7,77.2,76.0,75.5,75.0,74.9,74.9,74.8,74.7,74.5,74.3,74.2,74.0,73.5,73.3,73.3,72.2,71.8,71.8,71.2,69.3,68.6,68.6,68.1,66.4,60.3,54.6,21.4,21.0,21.0,20.7,14.1.
HRMS(ESI+)[M+NH4]+calcd for C114H117F3N3O24 +:1969.8007;found1969.7983.
13C―NMR(CDCl3)σ 170.2,169.9,168.2,167.5,155.3,150.9,138.9,138.8,138.7,138.6,138.4,138.1,138.1,138.0,138.0,137.9,133.9,133.7,133.6,131.9,131.7,131.6,128.7,128.5,128.5,128.5,128.4,128.3,128.2,127.9,127.9,127.8,127.8,127.7,127.6,127.5,127.4,127.0,123.6,123.3,123.2,118.7,114.3,102.1,99.7,98.4,97.5,97.2,81.2,79.8,78.2,78.0,77.8,77.4,76.7,76.1,75.1,75.1,74.9,74.7,74.7,74.6,74.3,74.1,73.6,73.4,73.2,72.7,72.4,72.0,71.9,71.3,69.1,68.8,68.2,68.1,67.7,66.6,56.6,55.7,55.6,31.1,21.1,20.8.
HRMS(ESI+)[M+HNEt3]+ calcd for C147H156N3O31 +:2459.0717;found 2459.0720.
13C―NMR(CDCl3) σ 168.2,167.4,155.1,150.8,138.9,138.8,138.4,138.4,138.2,138.2,138.0,137.9,137.8,137.7,133.8,133.5,131.7,131.4,128.5,128.4,128.4,128.2,128.2,128.1,128.1,127.8,127.7,127.7,127.6,127.5,127.5,127.4,127.3,127.2,126.8,123.5,123.2,123.0,118.5,114.1,101.7,101.4,99.7,97.3,97.1,81.6,79.9,79.6,79.2,78.2,77.2,76.8,76.0,74.9,74.8,74.7,74.6,74.5,74.2,74.0,73.4,73.2,73.1,72.6,72.0,71.9,71.4,71.1,69.1,68.7,68.5,67.9,67.7,67.6,66.3,56.4,55.5,55.4.
HRMS(ESI+)[M+HNEt3]+ calcd for C143H152N3O29 +:2375.0506;found 2375.0514.
備考)-78℃条件、トリフルオロメタンスルホン酸t-ブチルジメチルシリルをルイス酸として用いた場合において、反応速度の向上が確認された。反応温度は昇温せず(-78℃保持)、反応終了を確認するまで、ルイス酸0.15当量の追加する操作により、再現性良く反応が進行した。
13C―NMR(CDCl3) σ 169.5,169.4,169.3,168.4,168.0,167.4,167.1,155.1,150.7,138.8,138.7,138.6,138.4,138.3,138.2,138.0,138.0,137.9,137.6,133.5,131.8,131.7,131.5,131.4,129.0,128.8,128.7,128.6,128.3,128.2,128.1,128.0,128.0,127.9,127.8,127.8,127.6,127.6,127.5,127.4,127.4,127.2,127.2,127.1,127.0,126.8,126.0,125.2,123.4,123.2,118.5,114.2,101.7,98.4,97.8,97.3,96.9,96.3,95.8,80.5,79.6,78.0,77.6,77.2,76.5,76.4,75.9,75.0,74.8,74.5,74.1,73.9,73.6,73.5,73.5,73.4,73.3,73.2,73.1,72.8,72.5,72.4,72.2,72.1,72.0,71.9,70.8,70.3,69.7,69.5,69.3,67.9,67.4,66.8,60.3,56.5,55.5,55.4,55.0,54.9,21.4,21.0,20.8,20.8,14.1.
HRMS(ESI+)[M+HNEt3]+ calcd for C203H206N5O43 +:3401.4081;found 3401.4070.
13C―NMR(CDCl3)interalia σ 155.1,155.0,154.8,154.8,154.7,151.5,151.2,151.1,151.0,139.0,138.9,138.8,138.7,138.7,138.6,138.4,138.3,138.2,138.1,138.0,137.6129.4,129.3,129.2,128.7,128.6,128.6,128.5,128.4,128.3,128.3,128.2,128.1,128.0,127.9,127.8,127.8,127.7,127.6,127.5,127.5,126.2,125.7,125.4,125.3,122.3,121.9,118.0,114.6,102.0,99.4,80.4,79.8,78.3,77.8,77.4,75.3,75.1,74.9,74.8,74.7,74.7,74.6,74.1,73.8,73.6,73.4,73.2,72.7,72.2,71.3,71.1,70.6,69.9,69.5,69.1,57.8,56.8,55.8.
HRMS(ESI+)[M+HNEt3]+ calcd for C195H210N5O41 +:3277.4496;found 3277.4492.
13C―NMR(CDCl3) σ 174.7,174.6,173.8,171.9,170.7,170.5,170.4,170.3,170.1,170.0,170.0,169.9,169.8,167.8,167.2,166.2,165.8,165.5,165.3,165.2,165.0,155.3,154.3,151.5,151.3,151.1,151.0,139.1,138.7,138.4,138.3,138.1,133.3,133.3,129.9,129.8,129.8,129.7,129.6,129.5,129.4,129.3,129.2,128.7,128.5,128.4,128.3,128.2,128.1,128.0,127.9,127.7,127.5,127.4,125.7,125.4,125.3,121.9,121.8,121.7,118.5,114.6,100.00,99.4,99.3,99.1,99.0,95.5,91.2,77.4,74.5,74.2,73.6,73.5,73.2,73.0,72.2,72.0,71.8,71.7,70.5,70.1,69.9,69.5,69.5,68.6,68.5,68.3,68.0,67.7,67.5,67.2,66.7,66.6,63.1,62.6,62.1,57.4,57.1,57.0,55.7,55.0,53.1,53.1,53.0,38.9,38.8,32.3,29.8,28.126.7,26.0,25.9,25.7,21.1,21.0,20.7.
HRMS(ESI+)[M+HNEt3+HNEt3]2+ calcd for C289H324N8O83 2+:2618.5734;found 2618.5552.
13C―NMR(CDCl3) σ 155.2,154.1,153.8,170.4,151.4,138.8,138.7,138.6,138.5,138.4,138.2,138.0,137.9,137.8,137.6,137.4,128.6,128.5,128.5,128.5,128.3,128.2,128.2,128.0,128.0,127.9,127.9,127.9,127.8,127.7,127.7,127.7,127.6,127.6,127.5,127.5,127.4,125.9,118.2,114.4,101.3,100.2,98.8,99.2,95.7,95.6,95.5,80.1,79.3,78.9,78.2,77.9,77.2,75.0,74.8,74.6,74.5,74.4,73.8,73.7,73.6,73.5,73.2,73.1,73.0,72.7,72.2,71.1,70.9,70.7,69.9,69.1,68.6,68.3,68.3,66.7,57.3,56.8,56.3,55.6,55.0,29.7.
HRMS(ESI+)[M+HNEt3]+ calcd for C179H198Cl12N5O41 +:3500.9801;found 3500.9820.
13C―NMR(CDCl3) σ 174.5,174.5,174.4,173.6,173.6,173.5,171.7,170.6,170.5,170.3,170.2,170.0,169.9,169.9,169.8,169.8,169.8,169.7,169.7,169.7,169.6,169.6,169.6,169.36,155.1,153.9,153.7,151.3,138.8,138.7,138.5,138.4,138.0,138.0,137.8,133.7,133.4,133.2,133.1,133.1,130.8,129.8,129.7,129.7,129.6,129.5,129.4,129.4,129.3,129.2,129.1,129.1,129.1,129.0,128.9,128.7,128.6,128.5,128.5,128.4,128.3,128.2,128.1,128.1,128.0,128.0,127.8,127.7,127.7,127.6,127.5,127.4,127.1,125.4,118.2,114.3,99.7,99.2,99.1,98.9,98.7,98.3,95.7,95.3,92.6,77.4,77.2,74.6,74.2,73.7,73.3,73.0,72.7,72.0,71.5,71.5,71.4,70.0,69.8,69.8,69.7,69.2,62.9,62.9,62.4,62.3,61.8,61.6,57.2,56.9,56.8,55.5,54.8,52.9,52.9,52.8,52.8,32.1,31.8,30.2,29.6,28.8,27.9,27.8,26.4,25.9,25.8,25.8,25.5,23.6,22.9,22.6,21.0,21.0,20.9,20.9,20.9,20.9,20.8,20.8,20.7,20.7,20.7,20.6,20.6,20.5,20.6,14.0,14.0,10.9.
HRMS(ESI+)[M+HNEt3+HNEt3]2+ calcd for C273H312Cl12N8O83 2+:2729.8355;found 2729.8382.
HRMS(ESI+)[M+4H]4+ calcd for C195H236N6O59 4+:901.8924;found 901.8889.
HRMS(ESI+)[M+3H]3+ calcd for C203H243N6O63 3+:1258.2015;found 1258.1944.
備考)パラジウム濾過時は空気の混入に十分注意する必要がある。酸素の影響により残留パラジウムが大きく変動し、HPLC上のピーク形状もそれに伴って変化する現象が発生する。上記の現象を防ぐ目的から、反応~パラジウム濾過終了まで、不活性雰囲気下で操作を実施する。
式A-21で示される化合物を、以下の合成スキーム5に従って精製した。下記の左下に示す化合物は、式E-1:
[合成スキーム5]
なお、(-)-ジ-p-トルオイル-L-酒石酸の替わりに、(+)-ジ-p-トルオイル-D-酒石酸を用いても同様の操作が可能である。
13C-NMR(125MHz,DMSO)δ167.98,164.86,133.38,129.63,129.22,128.66,72.10,69.73,69.63,69.59,69.57,69.21,66.69,49.97,38.38.
なお、(-)-ジベンゾイル-L-酒石酸の替わりに、(+)-ジベンゾイル-D-酒石酸を用いても同様の操作が可能である。
(-)-ジ-p-アニソイル-L-酒石酸の替わりに、(+)-ジ-p-アニソイル-D-酒石酸を用いても同様の操作が可能である。
1H-NMR(500MHz,CDCl3)δ3.69-3.62(m,10H),3.51(t,J=5.5Hz,2H),3.39(t,J=5.5Hz,2H),2.87(t,J=5.5Hz,2H).
下記のHPLC分析条件において、式A-21で示される化合物の純度の測定を実施した。サンプル溶液を測定後、ブランク溶液を測定し、ブランクピークを削除することにより、式A-21で示される化合物のHPLC純度を算出した。
10mLメスフラスコに、式A-21で示される化合物50mgを秤量し、アセトニトリル2mL、トリエチルアミン100μLを加え、混合した。無水酢酸50μLを添加し、混合後、15分静置し、式A-21で示される化合物をアセチル誘導体化した。4規定水酸化ナトリウム水溶液150μLを加え、混合後、50%アセトニトリル水でメスアップしてサンプル溶液を調製した。
<ブランク溶液の調製>
10mLメスフラスコにアセトニトリル2mL、トリエチルアミン100μLを加え、混合した。無水酢酸50μL を添加し、混合後、15分静置した。4規定水酸化ナトリウム水溶液150μLを加え、混合後、50%アセトニトリル水でメスアップしてサンプル溶液を調製した。
<HPLC分析条件>
使用機器:SHIMAZU HPLC(LC-20AD)
カラム:Xbrige C18 3.5μm,4.6×150mm(Waters)
移動相A:10mM AcONH4水溶液
移動相B:CH3CN
検出波長:210nm
カラム温度:40℃
注入量:5μL
保持時間:7.3分(アセチル化された式A-21で示される化合物),9.0分(アセチル化された式A-21で示される化合物の二量体)
13C―NMR(D2O) σ 185.0,184.8,184.7,180.3,168.9,165.9,139.7,137.1,128.0,126.2,125.4,124.7,124.6,124.5,124.5,122.6,109.7,109.6,109.4,108.7,108.2,106.2,106.0,104.8,104.5,103.8,103.3,103.0,102.8,102.7,102.6,101.9,101.6,101.2,100.8,100.7,100.4,100.4,99.8,99.7,99.3,98.9,98.6,97.7,97.6,95.5,95.1,94.4,94.3,93.2,93.0,89.7,89.0,89.0,88.7,86.4,85.2,76.0,75.6,63.0,62.9,62.7,62.7.
MS(ESI+)[M+2NH4]2+ calcd for C107H184N16O67 2+:1383.0(m/z);found 1383.0.
R1がイソプロピルである式A-22で示される化合物(すなわち、式A’’-22で示される化合物)を以下の合成スキーム6に従って合成した。
[合成スキーム6]
13C-NMR(CDCl3)inter alia σ169.7,138.0,137.7,133.8,131.5,128.4,128.1,127.8,127.7,127.4,123.5,96.9,73.7,73.6,73.4,72.7,72.1,70.0,55.7,23.3,21.8,20.9.
MS(ESI)(m/z):596([M+Na]+).
HRMS(ESI+)[M+2H]2+calcd for C157H180N4O32 2+:1317.13016;found 1317.13128.
備考)ASCA-2は下記の手法により前処理を実施した。
アルゴン下、ASCA-2(31.2g)のDMF(54mL)スラリー液を0-5℃に冷却後、精製水(13.5mL)と濃塩酸(13.5mL)を滴下した。20-30℃で1時間攪拌後、アルゴン下で濾過し、精製水(594mL)で洗浄し、前処理品のASCA-2(40.5g)を得た。
HPLCカラム:YMC―Triart Prep Bio200 C8 (20nm,10μm)、30mm×250mm
移動相:メタノール/水(25/75)
流速:30mL/分
目的物溶出位置:35~55分
注入量:2mL(160mg/mL溶液)
フラクション:各1分
13C-NMR(D2O)interalia σ 175.1,174.7,174.6,169.2,103.8,99.7,99.6,99.5,99.47,99.44,99.40,99.36,99.33,99.31,80.9,80.8,80.5,79.7,79.4,77.5,76.5,76.2,74.6,74.4,73.9,73.87,73.80,73.60,73.57,73.52,72.95,72.90,72.7,72.6,72.56,72.5,72.26,72.23,72.18,72.17,72.14,72.11,72.10,71.22,71.15,71.10,70.9,70.7,70.6,70.4,70.3,70.26,70.25,70.21,69.7,69.6,69.5,69.3,69.2,68.6,68.4,67.8,67.4,67.1,64.2,63.0,62.8,62.75,62.72,62.7,62.0,61.8,61.74,61.68,61.65,60.2,59.9,55.4,55.3,54.9,54.7,54.64,54.62,51.8,51.7,50.2,38.8,38.3,38.2,22.5, 22.3,22.2,22.1,21.2.
HRMS(ESI+)[M+H]+calcd for C103H177N14O66 +:2667.09503;found 2667.09661.
Claims (44)
- 以下の式A-22:
で示されるオリゴ糖(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよい)を製造する方法であって、(工程I-1)式A-3:
で示される化合物を、以下の式A-5:
で示される化合物とα-1,3-グリコシド結合及びα-1,6-グリコシド結合させることにより、以下の式A-6:
で示される化合物を生成する工程を含む、以下の式A-8:
で示される化合物を生成する工程、
(工程I-2)前記式A-8で示される化合物を、以下の式A-9:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよい)とβ-1,4-グリコシド結合させることにより、以下の式A-10:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよい)を生成する工程を含む、以下の式A-11:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよい)を生成する工程、
(工程I-3)前記式A-11で示される化合物を、以下の式A-12:
で示される化合物とβ-1,2-グリコシド結合させることにより、以下の式A-13:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよい)を生成し、次いで、前記式A-13で示される化合物上のアミノ基の保護基であるフタロイル基及び水酸基上のアセチル基を除去して、以下の式A-14:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよい)を生成した後、前記式A-14で示される化合物中のアミノ基をアリールオキシカルボニル(COOAr)基、アセチル(Ac)基、2,2,2-トリクロロエトキシカルボニル(Troc)基、及びフタロイル(Phth)基から選択される保護基によって保護して、以下の式A-15:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、R5は、アリールオキシカルボニル(COOAr)基、アセチル(Ac)基、若しくは2,2,2-トリクロロエトキシカルボニル(Troc)基であり、かつ、R6は、水素原子であるか、又はR5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)を生成するか、又は上記式A-13で示される化合物上のアセチル(Ac)基を除去することによって、上記式A-15で示される化合物(式中、R5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)を生成する工程、
(工程I-4)前記式A-15で示される化合物を、以下の式A-16:
で示される化合物とβ-1,4-グリコシド結合させることにより、以下の式A-17:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、R5は、アリールオキシカルボニル(COOAr)基、アセチル(Ac)基、若しくは2,2,2-トリクロロエトキシカルボニル(Troc)基であり、かつ、R6は、水素原子であるか、又はR5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)を生成し、次いで、前記式A-17で示される化合物中のアミノ基の保護基及び水酸基のアシル系保護基を除去することにより、式A-18:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、M+は、ナトリウムイオン、リチウムイオン、カリウムイオン、又はプロトン化されたトリエチルアミンカチオンである)を生成することを含む、以下の式A-20:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、M+は、ナトリウムイオン、リチウムイオン、カリウムイオン、又はプロトン化されたトリエチルアミンカチオンである)を生成する工程、
(工程I-5)前記式A-20で示される化合物を、以下の式A-21:
で示される化合物と反応させることにより、前記式A-22で示されるオリゴ糖を製造する工程、
を含む、方法。 - 前記フルオラスアルコールが、ヘキサフルオロ-2-プロパノール(HFIP)、2,2,2-トリフルオロエタノール(TFE)、2,2,3,3,4,4,5,5-オクタフルオロ-1-ペンタノール、ノナフルオロ-tert-ブチルアルコール及びこれらの組み合わせからなる群から選択される、請求項2に記載の方法。
- 前記反応が、-35℃~70℃で行われる、請求項2又は3に記載の方法。
- 前記反応が、-30℃~-10℃で行われる、請求項2又は3に記載の方法。
- 前記工程I-2において、前記式A-10で示される化合物を、パーフルオロカルボン酸のアルキルエステルの存在下で、強塩基と反応させることにより、前記式A-11で示される化合物を生成することを含む、請求項1~5のいずれか一項に記載の方法。
- 前記パーフルオロカルボン酸のアルキルエステルが、トリフルオロ酢酸メチル、トリフルオロ酢酸エチル、トリフルオロ酢酸プロピル、トリフルオロ酢酸イソプロピル、トリフルオロ酢酸ブチル、ペンタフルオロプロピオン酸メチル、ペンタフルオロプロピオン酸エチル、ペンタフルオロプロピオン酸プロピル、ぺンタフルオロプロピオン酸イソプロピル、ぺンタフルオロプロピオン酸ブチル、ヘプタフルオロ酪酸メチル、ヘプタフルオロ酪酸エチル、ヘプタフルオロ酪酸プロピル、ヘプタフルオロ酪酸イソプロピル、ヘプタフルオロ酪酸ブチル、ノナフルオロ吉草酸メチル、ノナフルオロ吉草酸エチル、ノナフルオロ吉草酸プロピル、ノナフルオロ吉草酸イソプロピル、ノナフルオロ吉草酸ブチル、ウンデカフルオロカプロン酸メチル、ウンデカフルオロカプロン酸エチル、ウンデカフルオロカプロン酸プロピル、ウンデカフルオロカプロン酸イソプロピル、又はウンデカフルオロカプロン酸ブチルである、請求項6に記載の方法。
- 前記強塩基が、金属アミドのナトリウム塩、リチウム塩、及びカリウム塩;C1~C20アルコキシドのナトリウム塩、リチウム塩、カリウム塩、セシウム塩、及びバリウム塩;水素化ナトリウム、水素化カリウム、水素化リチウム、ブチルリチウム、炭酸カリウム、炭酸ナトリウム、炭酸セシウム、炭酸リチウム、リン酸カリウム、リン酸ナトリウム、リン酸セシウム、リン酸リチウム、ジアザビシクロウンデセン(DBU)、ジアザビシクロノネン(DBN)、及び1,1,3,3-テトラメチルグアニジン(TMG);並びにこれらの組み合わせからなる群より選択される、請求項6又は7に記載の方法。
- 前記強塩基が、カリウムtert-ブトキシド、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、又はリチウムヘキサメチルジシラジド(LHMDS)である、請求項6又は7に記載の方法。
- 前記式A-10で示される化合物を、パーフルオロカルボン酸のアルキルエステルの存在下で、強塩基と反応させることにより、前記式A-11で示される化合物を生成する工程が、C1~C10アルコール溶媒単独中で行われるか、又はC1~C10アルコール溶媒とアミド系溶媒、エーテル系溶媒、エステル系溶媒、芳香族系溶媒、ハロゲン系溶媒、炭化水素系溶媒、若しくはニトリル系溶媒との混合溶媒中で行われる、請求項6~9のいずれか一項に記載の方法。
- 前記工程I-3において、前記式A-14で示される化合物中のアミノ基を、アリールオキシカルボニル(COOAr)基で保護することによって前記式A-15で示される化合物を生成する、請求項1~10のいずれか一項に記載の方法。
- 前記工程I-3において、前記式A-14で示される化合物から前記式A-15で示される化合物を生成する工程が、炭酸水素ナトリウム、炭酸水素カリウム、リン酸水素二ナトリウム、又はリン酸水素二カリウムの水溶液中で行われる、請求項1~11のいずれか一項に記載の方法。
- 前記R1が、イソプロピル又は4-メトキシフェニルである、請求項1~11のいずれか一項に記載の方法。
- 前記式A-16で示される化合物を生成するための工程であって、以下の式G-11:
で示される化合物及びカルボニルクロロヒドリドトリス(トリフェニルホスフィン)ルテニウム(II)を含む溶液を攪拌し、次いで、該溶液に水及び1,3―ジブロモ-5,5-ジメチルヒダントイン、ヨウ素、又はN-ブロモスクシンイミドを添加して攪拌することにより、式G-11で示される化合物中のD-ガラクトピラノシドの1位の炭素に酸素を介して結合しているアリル基を脱離させて、以下の式G-12:
で示される化合物を生成し、さらに、前記式G-12で示される化合物中のD-ガラクトピラノシドの1位の炭素における水酸基を2,2,2-トリフルオロ-N-フェニルアセトイミダート基に変換することにより、前記式A-16で示される化合物を生成する工程を含む、請求項1~13のいずれか一項に記載の方法。 - 前記フルオラスアルコールが、ヘキサフルオロ-2-プロパノール(HFIP)、2,2,2-トリフルオロエタノール(TFE)、2,2,3,3,4,4,5,5-オクタフルオロ-1-ペンタノール、ノナフルオロ-tert-ブチルアルコール及びこれらの組み合わせからなる群から選択される、請求項15に記載の方法。
- 前記反応が、-35℃~70℃で行われる、請求項15又は16に記載の方法。
- 前記反応が、-30℃~-10℃で行われる、請求項15又は16に記載の方法。
- 前記パーフルオロカルボン酸のアルキルエステルが、トリフルオロ酢酸メチル、トリフルオロ酢酸エチル、トリフルオロ酢酸プロピル、トリフルオロ酢酸イソプロピル、トリフルオロ酢酸ブチル、ペンタフルオロプロピオン酸メチル、ペンタフルオロプロピオン酸エチル、ペンタフルオロプロピオン酸プロピル、ぺンタフルオロプロピオン酸イソプロピル、ぺンタフルオロプロピオン酸ブチル、ヘプタフルオロ酪酸メチル、ヘプタフルオロ酪酸エチル、ヘプタフルオロ酪酸プロピル、ヘプタフルオロ酪酸イソプロピル、ヘプタフルオロ酪酸ブチル、ノナフルオロ吉草酸メチル、ノナフルオロ吉草酸エチル、ノナフルオロ吉草酸プロピル、ノナフルオロ吉草酸イソプロピル、ノナフルオロ吉草酸ブチル、ウンデカフルオロカプロン酸メチル、ウンデカフルオロカプロン酸エチル、ウンデカフルオロカプロン酸プロピル、ウンデカフルオロカプロン酸イソプロピル、又はウンデカフルオロカプロン酸ブチルである、請求項19に記載の方法。
- 前記強塩基が、金属アミドのナトリウム塩、リチウム塩、及びカリウム塩;C1~C20アルコキシドのナトリウム塩、リチウム塩、カリウム塩、セシウム塩、及びバリウム塩;水素化ナトリウム、水素化カリウム、水素化リチウム、ブチルリチウム、炭酸カリウム、炭酸ナトリウム、炭酸セシウム、炭酸リチウム、リン酸カリウム、リン酸ナトリウム、リン酸セシウム、リン酸リチウム、ジアザビシクロウンデセン(DBU)、ジアザビシクロノネン(DBN)、及び1,1,3,3-テトラメチルグアニジン(TMG);並びにこれらの組み合わせからなる群より選択される、請求項19又は20に記載の方法。
- 前記強塩基が、カリウムtert-ブトキシド、ナトリウムtert-ブトキシド、リチウムtert-ブトキシド、又はリチウムヘキサメチルジシラジド(LHMDS)である、請求項19又は20に記載の方法。
- 前記反応が、C1~C10アルコール溶媒単独又はC1~C10アルコール溶媒とアミド系溶媒、エーテル系溶媒、エステル系溶媒、芳香族系溶媒、ハロゲン系溶媒、炭化水素系溶媒、若しくはニトリル系溶媒との混合溶媒中で行われる、請求項19~22のいずれか一項に記載の方法。
- 以下の式A-17:
で示される化合物で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、R5は、アリールオキシカルボニル(COOAr)基、アセチル(Ac)基、若しくは2,2,2-トリクロロエトキシカルボニル(Troc)基であり、かつ、R6は、水素原子であるか、又はR5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)を生成する方法であって、以下の式A-15:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、R5は、アリールオキシカルボニル(COOAr)基、アセチル(Ac)基、若しくは2,2,2-トリクロロエトキシカルボニル(Troc)基であり、かつ、R6は、水素原子であるか、又はR5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)を生成し、次いで、以下の式A-16:
で示される化合物とβ-1,4-グリコシド結合させることにより、前記式A-17で示される化合物を生成する工程を含む、方法。 - R5が、アリールオキシカルボニル(COOAr)基である、請求項24に記載の方法。
- 以下の式A-18:
で示される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、M+は、ナトリウムイオン、リチウムイオン、カリウムイオン、又はプロトン化されたトリエチルアミンカチオンである)を生成する方法であって、以下の式A-17:
で表される化合物(式中、R1は、C1~C6アルキル基又はフェニル基であり、該フェニル基は、1~3個のC1~C6アルコキシ基で置換されていてもよく、R5は、アリールオキシカルボニル(COOAr)基、アセチル(Ac)基、若しくは2,2,2-トリクロロエトキシカルボニル(Troc)基であり、かつ、R6は、水素原子であるか、又はR5及びR6は、これらが結合している窒素原子と一緒にフタルイミド基を形成する)におけるアミノ基の保護基及び水酸基のアシル系保護基を除去することを含む、方法。 - 糖鎖リモデリング抗体又はそのFc領域含有分子の製造方法であって、請求項1~14のいずれか一項に記載の方法を含む式A-22で示されるオリゴ糖を得る工程、及び、得られた式A-22で示されるオリゴ糖と、N297結合糖鎖としてフコースが付加していてもよいコアGlcNAcを有する抗体又はそのFc領域含有分子であるアクセプター分子とを反応させて、前記糖鎖リモデリング抗体又はそのFc領域含有分子を得る工程を含む、方法。
- 更に、アジド基(N3-)にアルキン構造を有する分子と反応させる工程を含む、請求項41に記載の製造方法。
- 前記アルキン構造を有する分子が、化学療法剤、分子標的薬、免疫活性化剤、毒素、抗菌剤、抗ウイルス剤、診断用薬剤、タンパク質、ペプチド、アミノ酸、核酸、抗原、ビタミン及びホルモンから選択される、請求項42に記載の製造方法。
- 請求項41~43のいずれか一項に記載の製造方法を含む、抗体薬物コンジュゲートの製造方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23863112.1A EP4585601A1 (en) | 2022-09-09 | 2023-09-01 | Novel oligosaccharide, production intermediate for novel oligosaccharide, production method for novel oligosaccharide, and production method for production intermediate for novel oligosaccharide |
| CN202380064592.0A CN119855836A (zh) | 2022-09-09 | 2023-09-01 | 新型寡糖、该寡糖的制造中间体、以及它们的制造方法 |
| KR1020257011302A KR20250064682A (ko) | 2022-09-09 | 2023-09-01 | 신규 올리고당, 그 올리고당의 제조 중간체, 및 그것들의 제조 방법 |
| JP2024545634A JPWO2024053574A1 (ja) | 2022-09-09 | 2023-09-01 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022143814 | 2022-09-09 | ||
| JP2022-143814 | 2022-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024053574A1 true WO2024053574A1 (ja) | 2024-03-14 |
Family
ID=90191117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/032064 Ceased WO2024053574A1 (ja) | 2022-09-09 | 2023-09-01 | 新規なオリゴ糖、該オリゴ糖の製造中間体、及びそれらの製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4585601A1 (ja) |
| JP (1) | JPWO2024053574A1 (ja) |
| KR (1) | KR20250064682A (ja) |
| CN (1) | CN119855836A (ja) |
| TW (1) | TW202419107A (ja) |
| WO (1) | WO2024053574A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025238253A1 (en) | 2024-05-16 | 2025-11-20 | Synaffix B.V. | Antibody-oligonucleotide conjugates |
Citations (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990007861A1 (en) | 1988-12-28 | 1990-07-26 | Protein Design Labs, Inc. | CHIMERIC IMMUNOGLOBULINS SPECIFIC FOR p55 TAC PROTEIN OF THE IL-2 RECEPTOR |
| WO1996002255A1 (en) | 1994-07-15 | 1996-02-01 | Taiyo Kagaku Co., Ltd. | Medicinal composition containing sialic acid derivative |
| US5821337A (en) | 1991-06-14 | 1998-10-13 | Genentech, Inc. | Immunoglobulin variants |
| WO1998050433A2 (en) | 1997-05-05 | 1998-11-12 | Abgenix, Inc. | Human monoclonal antibodies to epidermal growth factor receptor |
| WO2002092771A2 (en) | 2001-05-11 | 2002-11-21 | Ludwig Institute For Cancer Research | Specific binding proteins and uses thereof |
| WO2004008099A2 (en) | 2002-07-15 | 2004-01-22 | Genentech, Inc. | METHODS FOR IDENTIFYING TUMORS THAT ARE RESPONSIVE TO TREATMENT WITH ANTI-ErbB2 ANTIBODIES |
| WO2004073656A2 (en) | 2003-02-20 | 2004-09-02 | Seattle Genetics, Inc. | Anti-cd70 antibody-drug conjugates and their use for the treatment of cancer and immune disorders |
| WO2007038637A2 (en) | 2005-09-26 | 2007-04-05 | Medarex, Inc. | Human monoclonal antibodies to cd70 |
| WO2009028639A1 (ja) | 2007-08-30 | 2009-03-05 | Daiichi Sankyo Company, Limited | 抗epha2抗体 |
| JP2009155353A (ja) * | 2006-03-30 | 2009-07-16 | Yokohama City Univ | 糖鎖化合物の製造方法 |
| WO2011027868A1 (ja) | 2009-09-03 | 2011-03-10 | 公益財団法人野口研究所 | 11糖シアリルオリゴ糖ペプチドの製造方法 |
| US20120226024A1 (en) * | 2011-03-03 | 2012-09-06 | Lai-Xi Wang | Core fucosylated glycopeptides and glycoproteins: chemoenzymatic synthesis and uses thereof |
| US20140051603A1 (en) * | 2011-03-25 | 2014-02-20 | University Of Georgia Research Foundation, Inc | Compounds and methods for chemical and chemo-enzymatic synthesis of complex glycans |
| WO2014057687A1 (ja) | 2012-10-11 | 2014-04-17 | 第一三共株式会社 | 抗体-薬物コンジュゲート |
| WO2014115797A1 (ja) * | 2013-01-23 | 2014-07-31 | 第一三共株式会社 | 糖鎖修飾心房性ナトリウム利尿ペプチド |
| WO2014208742A1 (ja) | 2013-06-28 | 2014-12-31 | 第一三共株式会社 | オリゴ糖ペプチドの精製方法 |
| WO2015080603A1 (en) * | 2013-11-28 | 2015-06-04 | Antony John Fairbanks | Glycoproteins |
| WO2015098099A1 (ja) | 2013-12-25 | 2015-07-02 | 第一三共株式会社 | 抗trop2抗体-薬物コンジュゲート |
| WO2016076440A1 (ja) * | 2014-11-14 | 2016-05-19 | 東京化成工業株式会社 | 糖ペプチド又は糖蛋白質の製造方法 |
| JP6001267B2 (ja) | 2011-12-31 | 2016-10-05 | 公益財団法人野口研究所 | 炭素−炭素結合型ヘビーフルオラスタグ |
| US20160361436A1 (en) | 2015-01-09 | 2016-12-15 | Isis Innovation Limited | Antibody conjugates and methods of making the antibody conjugates |
| WO2017110984A1 (ja) | 2015-12-25 | 2017-06-29 | 第一三共株式会社 | 限外ろ過膜を用いたオリゴ糖ペプチドの精製法 |
| WO2018003983A1 (ja) | 2016-07-01 | 2018-01-04 | 第一三共株式会社 | hANP-Fc含有分子コンジュゲート |
| JP2018021001A (ja) * | 2016-07-25 | 2018-02-08 | 株式会社伏見製薬所 | 糖誘導体の製造方法及び新規糖誘導体 |
| WO2018212136A1 (ja) | 2017-05-15 | 2018-11-22 | 第一三共株式会社 | 抗cdh6抗体及び抗cdh6抗体-薬物コンジュゲート |
| WO2019065964A1 (ja) | 2017-09-29 | 2019-04-04 | 第一三共株式会社 | 抗体-ピロロベンゾジアゼピン誘導体コンジュゲート |
| JP2019515876A (ja) * | 2016-03-08 | 2019-06-13 | アカデミア シニカAcademia Sinica | N−グリカンおよびそのアレイのモジュール合成のための方法 |
| WO2020050406A1 (ja) | 2018-09-06 | 2020-03-12 | 第一三共株式会社 | 新規環状ジヌクレオチド誘導体及びその抗体薬物コンジュゲート |
| WO2022050300A1 (ja) | 2020-09-02 | 2022-03-10 | 第一三共株式会社 | 新規エンド-β-N-アセチルグルコサミニダーゼ |
| WO2022191313A1 (ja) * | 2021-03-12 | 2022-09-15 | 第一三共株式会社 | 糖鎖及び糖鎖を含む医薬品の製造方法 |
| WO2023074843A1 (ja) * | 2021-10-29 | 2023-05-04 | 第一三共株式会社 | 新規なオリゴ糖、該オリゴ糖の製造中間体、及びそれらの製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1315559B1 (en) | 2000-08-18 | 2006-03-22 | Massachusetts Institute Of Technology | Apparatus and methods for the automated synthesis of oligosaccharides |
-
2023
- 2023-09-01 WO PCT/JP2023/032064 patent/WO2024053574A1/ja not_active Ceased
- 2023-09-01 KR KR1020257011302A patent/KR20250064682A/ko active Pending
- 2023-09-01 EP EP23863112.1A patent/EP4585601A1/en active Pending
- 2023-09-01 TW TW112133229A patent/TW202419107A/zh unknown
- 2023-09-01 JP JP2024545634A patent/JPWO2024053574A1/ja active Pending
- 2023-09-01 CN CN202380064592.0A patent/CN119855836A/zh active Pending
Patent Citations (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990007861A1 (en) | 1988-12-28 | 1990-07-26 | Protein Design Labs, Inc. | CHIMERIC IMMUNOGLOBULINS SPECIFIC FOR p55 TAC PROTEIN OF THE IL-2 RECEPTOR |
| US5821337A (en) | 1991-06-14 | 1998-10-13 | Genentech, Inc. | Immunoglobulin variants |
| WO1996002255A1 (en) | 1994-07-15 | 1996-02-01 | Taiyo Kagaku Co., Ltd. | Medicinal composition containing sialic acid derivative |
| WO1998050433A2 (en) | 1997-05-05 | 1998-11-12 | Abgenix, Inc. | Human monoclonal antibodies to epidermal growth factor receptor |
| WO2002092771A2 (en) | 2001-05-11 | 2002-11-21 | Ludwig Institute For Cancer Research | Specific binding proteins and uses thereof |
| WO2004008099A2 (en) | 2002-07-15 | 2004-01-22 | Genentech, Inc. | METHODS FOR IDENTIFYING TUMORS THAT ARE RESPONSIVE TO TREATMENT WITH ANTI-ErbB2 ANTIBODIES |
| WO2004073656A2 (en) | 2003-02-20 | 2004-09-02 | Seattle Genetics, Inc. | Anti-cd70 antibody-drug conjugates and their use for the treatment of cancer and immune disorders |
| WO2007038637A2 (en) | 2005-09-26 | 2007-04-05 | Medarex, Inc. | Human monoclonal antibodies to cd70 |
| JP2009155353A (ja) * | 2006-03-30 | 2009-07-16 | Yokohama City Univ | 糖鎖化合物の製造方法 |
| WO2009028639A1 (ja) | 2007-08-30 | 2009-03-05 | Daiichi Sankyo Company, Limited | 抗epha2抗体 |
| WO2011027868A1 (ja) | 2009-09-03 | 2011-03-10 | 公益財団法人野口研究所 | 11糖シアリルオリゴ糖ペプチドの製造方法 |
| US20120226024A1 (en) * | 2011-03-03 | 2012-09-06 | Lai-Xi Wang | Core fucosylated glycopeptides and glycoproteins: chemoenzymatic synthesis and uses thereof |
| US20140051603A1 (en) * | 2011-03-25 | 2014-02-20 | University Of Georgia Research Foundation, Inc | Compounds and methods for chemical and chemo-enzymatic synthesis of complex glycans |
| JP6001267B2 (ja) | 2011-12-31 | 2016-10-05 | 公益財団法人野口研究所 | 炭素−炭素結合型ヘビーフルオラスタグ |
| WO2014057687A1 (ja) | 2012-10-11 | 2014-04-17 | 第一三共株式会社 | 抗体-薬物コンジュゲート |
| WO2014115797A1 (ja) * | 2013-01-23 | 2014-07-31 | 第一三共株式会社 | 糖鎖修飾心房性ナトリウム利尿ペプチド |
| WO2014208742A1 (ja) | 2013-06-28 | 2014-12-31 | 第一三共株式会社 | オリゴ糖ペプチドの精製方法 |
| WO2015080603A1 (en) * | 2013-11-28 | 2015-06-04 | Antony John Fairbanks | Glycoproteins |
| WO2015098099A1 (ja) | 2013-12-25 | 2015-07-02 | 第一三共株式会社 | 抗trop2抗体-薬物コンジュゲート |
| WO2016076440A1 (ja) * | 2014-11-14 | 2016-05-19 | 東京化成工業株式会社 | 糖ペプチド又は糖蛋白質の製造方法 |
| US20160361436A1 (en) | 2015-01-09 | 2016-12-15 | Isis Innovation Limited | Antibody conjugates and methods of making the antibody conjugates |
| WO2017110984A1 (ja) | 2015-12-25 | 2017-06-29 | 第一三共株式会社 | 限外ろ過膜を用いたオリゴ糖ペプチドの精製法 |
| JP2019515876A (ja) * | 2016-03-08 | 2019-06-13 | アカデミア シニカAcademia Sinica | N−グリカンおよびそのアレイのモジュール合成のための方法 |
| WO2018003983A1 (ja) | 2016-07-01 | 2018-01-04 | 第一三共株式会社 | hANP-Fc含有分子コンジュゲート |
| JP2018021001A (ja) * | 2016-07-25 | 2018-02-08 | 株式会社伏見製薬所 | 糖誘導体の製造方法及び新規糖誘導体 |
| WO2018212136A1 (ja) | 2017-05-15 | 2018-11-22 | 第一三共株式会社 | 抗cdh6抗体及び抗cdh6抗体-薬物コンジュゲート |
| WO2019065964A1 (ja) | 2017-09-29 | 2019-04-04 | 第一三共株式会社 | 抗体-ピロロベンゾジアゼピン誘導体コンジュゲート |
| WO2020050406A1 (ja) | 2018-09-06 | 2020-03-12 | 第一三共株式会社 | 新規環状ジヌクレオチド誘導体及びその抗体薬物コンジュゲート |
| WO2022050300A1 (ja) | 2020-09-02 | 2022-03-10 | 第一三共株式会社 | 新規エンド-β-N-アセチルグルコサミニダーゼ |
| WO2022191313A1 (ja) * | 2021-03-12 | 2022-09-15 | 第一三共株式会社 | 糖鎖及び糖鎖を含む医薬品の製造方法 |
| WO2023074843A1 (ja) * | 2021-10-29 | 2023-05-04 | 第一三共株式会社 | 新規なオリゴ糖、該オリゴ糖の製造中間体、及びそれらの製造方法 |
Non-Patent Citations (47)
| Title |
|---|
| "Monoclonal Antibodies", 1980, PLENUM PRESS, pages: 365 - 367 |
| ACS CHEM. BIOL., vol. 7, no. 100759-10-2, 2012, pages 110 - 122 |
| ACS MED. CHEM. LETT., vol. 7, 2016, pages 1005 - 1008 |
| ANGEW. CHEM. INT. ED., vol. 44, 2005, pages 1665 - 1668 |
| ANGEW. CHEM. INT. ED., vol. 55, 2016, pages 2361 - 2367 |
| ANGEW. CHEM. INT. ED., vol. 60, 2021, pages 19287 - 24693 |
| APOORVA D. SRIVASTAVA; LUCA UNIONE; MARGREET A. WOLFERT; PABLO VALVERDE; ANA ARDÁ; JESÚS JIMÉNEZ‐BARBERO; GEERT‐JAN BOONS: "Mono‐ and Di‐Fucosylated Glycans of the Parasitic Worm S. mansoni are Recognized Differently by the Innate Immune Receptor DC‐SIGN", CHEMISTRY - A EUROPEAN JOURNAL, JOHN WILEY & SONS, INC, DE, vol. 26, no. 67, 22 October 2020 (2020-10-22), DE, pages 15605 - 15612, XP072572250, ISSN: 0947-6539, DOI: 10.1002/chem.202002619 * |
| BEILSTEIN, J. ORG. CHEM., vol. 14, 2018, pages 416 |
| BIOCONJUGATE CHEM., vol. 26, 2015, pages 2233 - 2242 |
| EDELMAN ET AL., PROC. NATL. ACAD. SCI. U.S.A., vol. 81, 1984, pages 6851 - 6855 |
| EON-DUVAL, A. ET AL., BIOTECHNOL. PROG., vol. 28, 2012, pages 608 - 622 |
| FAIRBANKS ANTONY J: "Synthetic and semi-synthetic approaches to unprotected N -glycan oxazolines", BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY, vol. 14, 1 January 2018 (2018-01-01), pages 416 - 429, XP055966254, DOI: 10.3762/bjoc.14.30 * |
| GUO, Z.-W. ITO, Y. NAKAHARA, Y. OGAWA, T.: "Synthetic study on a novel Asn-linked core structure: synthesis of a pentasaccharide @a-d-Man-(1@[3)-[@a-d-Man-(1@[6)]-@b-d-Man-(1@[4)-[@b-d-GlcNAc-(1@[6)]-@b-d- GlcNAc@[OMp", CARBOHYDRATE RESEARCH, PERGAMON, GB, vol. 306, no. 4, 1 January 1998 (1998-01-01), GB , pages 539 - 544, XP004127016, ISSN: 0008-6215, DOI: 10.1016/S0008-6215(98)00031-7 * |
| H. FIROUZABADI: "Science of synthesis : Houben-Weyl methods of molecular transformations: Category 4 : Compounds with two carbon-heteroatom bonds", vol. 30, 1 January 2007, STUTTGART : GEORG THIEME VERLAG. , DE , ISBN: 978-3-13-118821-2, article YAMADA, H.: "Product subclass 3: carbohydrate derivatives (including nucleosides)", pages: 47 - 81, XP009166014 * |
| HUDAK JASON E., YU HELEN H., BERTOZZI CAROLYN R.: "Protein Glycoengineering Enabled by the Versatile Synthesis of Aminooxy Glycans and the Genetically Encoded Aldehyde Tag", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, vol. 133, no. 40, 12 October 2011 (2011-10-12), pages 16127 - 16135, XP055966226, ISSN: 0002-7863, DOI: 10.1021/ja206023e * |
| J. AM. CHEM. SOC., vol. 126, 2004, pages 15046 - 15047 |
| J. AM. CHEM. SOC., vol. 127, 2005, pages 7296 |
| J. AM. CHEM. SOC., vol. 131, 2009, pages 16669 - 16671 |
| J. AM. CHEM. SOC., vol. 140, 2018, pages 4632 |
| J. AM. CHEM. SOC., vol. 141, 2019, pages 6484 - 6488 |
| J. ORG. CHEM., vol. 81, 2016, pages 10600 - 10616 |
| J. ORG. CHEM., vol. 82, 2017, pages 3926 |
| KOHLERMILSTEIN, NATURE, vol. 256, 1975 |
| LI LEI, LIU YUNPENG, MA CHENG, QU JINGYAO, CALDERON ANGIE D., WU BAOLIN, WEI NA, WANG XUAN, GUO YUXI, XIAO ZHONGYING, SONG JING, S: "Efficient chemoenzymatic synthesis of an N-glycan isomer library", CHEMICAL SCIENCE, ROYAL SOCIETY OF CHEMISTRY, UNITED KINGDOM, vol. 6, no. 10, 14 September 2015 (2015-09-14), United Kingdom , pages 5652 - 5661, XP093146918, ISSN: 2041-6520, DOI: 10.1039/C5SC02025E * |
| LI WEI, GAO YU, LI QING, LI ZHONG-JUN: "Ionic-liquid supported rapid synthesis of an N -glycan core pentasaccharide on a 10 g scale", ORGANIC & BIOMOLECULAR CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, vol. 16, no. 25, 27 June 2018 (2018-06-27), pages 4720 - 4727, XP055966256, ISSN: 1477-0520, DOI: 10.1039/C8OB01046C * |
| MITSUHIRO IWAMOTO, TAKAHIRO YAMAGUCHI, YUKIKO SEKIGUCHI, SHOHEI OISHI, TAKESHI SHIIKI, MASAKO SOMA, KENSUKE NAKAMURA, MAKOTO YOSHI: "Pharmacokinetic and Pharmacodynamic Profiles of Glyco-Modified Atrial Natriuretic Peptide Derivatives Synthesized Using Chemo-enzymatic Synthesis Approaches", BIOCONJUGATE CHEMISTRY, AMERICAN CHEMICAL SOCIETY, US, vol. 29, no. 8, 15 August 2018 (2018-08-15), US , pages 2829 - 2837, XP055641868, ISSN: 1043-1802, DOI: 10.1021/acs.bioconjchem.8b00427 * |
| NAKAHARA, Y. SHIBAYAMA, S. NAKAHARA, Y. OGAWA, T.: "Rationally designed syntheses of high-mannose and complex type undecasaccharides", CARBOHYDRATE RESEARCH, PERGAMON, GB, vol. 280, no. 1, 4 January 1996 (1996-01-04), GB , pages 67 - 84, XP004018834, ISSN: 0008-6215, DOI: 10.1016/0008-6215(95)00262-6 * |
| NATURE, vol. 321, 1986, pages 522 - 525 |
| ORG. BIOMOL. CHEM., vol. 16, 2018, pages 4720 - 4727 |
| ORG. LETT., vol. 4, 2002, pages 4551 |
| PROC. NATL. ACAD. SCI. U.S.A., vol. 112, 2015, pages 10611 |
| SACHIN S. SHIVATARE, LIN-YA HUANG, YI-FANG ZENG, JUNG-YU LIAO, TSAI-HONG YOU, SHI-YUN WANG, TING CHENG, CHIH-WEI CHIU, PING CHAO, : "Development of glycosynthases with broad glycan specificity for the efficient glyco-remodeling of antibodies", CHEMICAL COMMUNICATIONS, ROYAL SOCIETY OF CHEMISTRY, UK, vol. 54, no. 48, 1 January 2018 (2018-01-01), UK , pages 6161 - 6164, XP055612507, ISSN: 1359-7345, DOI: 10.1039/C8CC03384F * |
| SANGLIER-CIANFERANI, S., ANAL. CHEM., vol. 85, 2013, pages 715 - 736 |
| SHIVATARE SACHIN S.; CHANG SHIH-HUANG; TSAI TSUNG-I; TSENG SUSAN YU; SHIVATARE VIDYA S.; LIN YIH-SHYAN; CHENG YANG-YU; REN CHIEN-T: "Modular synthesis of-glycans and arrays for the hetero-ligand binding analysis of HIV antibodies", NATURE CHEMISTRY, NATURE PUBLISHING GROUP UK, LONDON, vol. 8, no. 4, 7 March 2016 (2016-03-07), London, pages 338 - 346, XP037134772, ISSN: 1755-4330, DOI: 10.1038/nchem.2463 * |
| SHUAISHUAI WANG; QING ZHANG; CONGCONG CHEN; YUXI GUO; MADHUSUDHAN REDDY GADI; JIN YU; ULRIKA WESTERLIND; YUNPENG LIU; XUEFENG CAO;: "Facile Chemoenzymatic Synthesis of O‐Mannosyl Glycans", ANGEWANDTE CHEMIE INTERNATIONAL EDITION, VERLAG CHEMIE, HOBOKEN, USA, vol. 57, no. 30, 18 May 2018 (2018-05-18), Hoboken, USA, pages 9268 - 9273, XP072104390, ISSN: 1433-7851, DOI: 10.1002/anie.201803536 * |
| SYNLETT, 2001, pages 1693 |
| TAKATANI M, NAKAMA T, KUBO K, MANABE S, NAKAHARA Y, ITO Y: "Synthesis of N-linked pentasaccharides with isomeric glycosidic linkage", GLYCOCONJUGATE JOURNAL, CHAPMAN & HALL, BOSTON, vol. 17, no. 6, 1 June 2000 (2000-06-01), Boston , pages 361 - 375, XP093146922, ISSN: 0282-0080, DOI: 10.1023/A:1007151913476 * |
| TANAKA HIROSHI, IWATA YUKI, TAKAHASHI DAISUKE, ADACHI MASAATSU, TAKAHASHI TAKASHI: "Efficient Stereoselective Synthesis of γ- N -Glycosyl Asparagines by N-Glycosylation of Primary Amide Groups", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, AMERICAN CHEMICAL SOCIETY, vol. 127, no. 6, 1 February 2005 (2005-02-01), pages 1630 - 1631, XP055966235, ISSN: 0002-7863, DOI: 10.1021/ja0450298 * |
| TANAKA KATSUNORI, GOI TAKASHI, FUKASE KOICHI: "Highly Efficient Sialylation towards α(2-3)- and α(2-6)-Neu5Ac-Gal Synthesis: Significant ‘Fixed Dipole Effect’ of N -Phthalyl Group on α-Selectivity", SYNLETT, GEORG THIEME VERLAG, DE, vol. 2005, no. 19, 1 January 2005 (2005-01-01), DE , pages 2958 - 2962, XP055966224, ISSN: 0936-5214, DOI: 10.1055/s-2005-921889 * |
| TANAKA, SHIN-ICHI. TAKSAHI GOI. KATSUNORI TANAKA. KOICHI FUKASE: "Highly Efficient α‐Sialylation by Virtue of Fixed Dipole Effects of N‐Phthalyl Group: Application to Continuous Flow Synthesis of α(2‐3)‐and α(2‐6)‐Neu5Ac‐Gal Motifs by Microreactor", JOURNAL OF CARBOHYDRATE CHEMISTRY, TAYLOR & FRANCIS, UK, vol. 26, no. 7, 7 November 2007 (2007-11-07), UK , pages 369 - 394, XP009539487, ISSN: 0732-8303, DOI: 10.1080/07328300701634796 * |
| TETRAHEDRON LETT., vol. 40, 1999, pages 7479 |
| TETRAHEDRONLETT., vol. 27, 1986, pages 5739 |
| TIEHAI LI; MIN HUANG; LIN LIU; SHUO WANG; KELLEY W. MOREMEN; GEERT‐JAN BOONS: "Divergent Chemoenzymatic Synthesis of Asymmetrical‐Core‐Fucosylated and Core‐Unmodified N‐Glycans", CHEMISTRY - A EUROPEAN JOURNAL, JOHN WILEY & SONS, INC, DE, vol. 22, no. 52, 22 November 2016 (2016-11-22), DE, pages 18742 - 18746, XP071879700, ISSN: 0947-6539, DOI: 10.1002/chem.201604999 * |
| WALCZEWSKA AGATA, GRZYWACZ DARIA, BEDNARCZYK DOROTA, DAWGUL MAŁGORZATA, NOWACKI ANDRZEJ, KAMYSZ WOJCIECH, LIBEREK BEATA, MYSZKA HE: "N -Alkyl derivatives of diosgenyl 2-amino-2-deoxy-β-D-glucopyranoside; synthesis and antimicrobial activity", BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY, vol. 11, 1 January 2015 (2015-01-01), pages 869 - 874, XP055966227, DOI: 10.3762/bjoc.11.97 * |
| WANG ZHEN, ZOEISHA S. CHINOY, SHAILESH G. AMBRE, WENJIE PENG, RYAN MCBRIDE, ROBERT P. DE VRIES, JOHN GLUSHKA, JAMES C. PAULSON, GE: "A General Strategy for the Chemoenzymatic Synthesis of Asymmetrically Branched N-Glycans", SCIENCE, AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, US, vol. 341, no. 6144, 26 July 2013 (2013-07-26), US , pages 379 - 383, XP093146929, ISSN: 0036-8075 * |
| YAMANOI, T. TSUTSUMIDA, M. ODA, Y. AKAIKE, E. OSUMI, K. YAMAMOTO, K. FUJITA, K.: "Transglycosylation reaction of Mucor hiemalis endo-@b-N-acetylglucosaminidase using sugar derivatives modified at C-1 or C-2 as oligosaccharide acceptors", CARBOHYDRATE RESEARCH, PERGAMON, GB, vol. 339, no. 7, 17 May 2004 (2004-05-17), GB , pages 1403 - 1406, XP004504529, ISSN: 0008-6215, DOI: 10.1016/j.carres.2004.01.023 * |
| YOSHIYUKI MANABE; HIROKI SHOMURA; NAOYA MINAMOTO; MASAHIRO NAGASAKI; YOHEI TAKAKURA; KATSUNORI TANAKA; ALBA SILIPO; ANTONIO MOLINA: "Convergent Synthesis of a Bisecting N‐Acetylglucosamine (GlcNAc)‐Containing N‐Glycan", CHEMISTRY - AN ASIAN JOURNAL, WILEY-VCH, HOBOKEN, USA, vol. 13, no. 12, 25 May 2018 (2018-05-25), Hoboken, USA, pages 1544 - 1551, XP072430862, ISSN: 1861-4728, DOI: 10.1002/asia.201800367 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025238253A1 (en) | 2024-05-16 | 2025-11-20 | Synaffix B.V. | Antibody-oligonucleotide conjugates |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202419107A (zh) | 2024-05-16 |
| KR20250064682A (ko) | 2025-05-09 |
| CN119855836A (zh) | 2025-04-18 |
| EP4585601A1 (en) | 2025-07-16 |
| JPWO2024053574A1 (ja) | 2024-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3690038A1 (en) | Antibody-pyrrolobenzodiazepine derivative conjugate | |
| US20110245488A1 (en) | Process for the synthesis of l-fucosyl di- or oligo-saccharides and novel 2,3,4 tribenzyl-fucosyl derivatives intermediates thereof | |
| TWI749504B (zh) | 抗涎酸酶之醣類、其之製造方法及用途 | |
| WO2024053574A1 (ja) | 新規なオリゴ糖、該オリゴ糖の製造中間体、及びそれらの製造方法 | |
| JP2025160360A (ja) | 糖鎖及び糖鎖を含む医薬品の製造方法 | |
| KR20240097876A (ko) | 신규한 올리고당, 그 올리고당의 제조 중간체, 및 그들의 제조 방법 | |
| Qiu et al. | Mucin type glycopeptides: Synthesis of core 2, core 6 and F1-α building blocks and some unexpected reactions | |
| CN118302451A (zh) | 新型寡糖、该寡糖的制造中间体、以及它们的制造方法 | |
| Yashunsky et al. | Synthesis of 3-aminopropyl glycosides of branched β-(1→ 3)-glucooligosaccharides | |
| Hanashima et al. | Sialylation using N-glycolylneuraminyl phosphite donors to synthesize Neu5Gc-containing glycans | |
| HK40109704A (en) | Novel oligosaccharide, manufacturing intermediate for novel oligosaccharide, and method for manufacturing these | |
| JP6198207B2 (ja) | 新規糖供与体及びそれを用いた糖鎖の合成方法 | |
| Nishiyama et al. | Synthesis of fluorescence-labeled Galβ1-3Fuc and Galβ1-4Fuc as probes for the endogenous glyco-epitope recognized by galectins in Caenorhabditis elegans | |
| HK40106086A (en) | Glycan, and method for producing medicine containing glycan | |
| JP5015505B2 (ja) | コア4型構造を有するo−結合型糖タンパク質糖鎖関連化合物およびその製造方法 | |
| HK40031007A (en) | Antibody-pyrrolobenzodiazepine derivative conjugate | |
| JP2010235593A (ja) | 糖1−ボラノホスフェート化合物の立体選択的製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23863112 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024545634 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202380064592.0 Country of ref document: CN |
|
| ENP | Entry into the national phase |
Ref document number: 20257011302 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202517033865 Country of ref document: IN Ref document number: 1020257011302 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2023863112 Country of ref document: EP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2023863112 Country of ref document: EP Effective date: 20250409 |
|
| WWP | Wipo information: published in national office |
Ref document number: 202380064592.0 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 202517033865 Country of ref document: IN |
|
| WWP | Wipo information: published in national office |
Ref document number: 2023863112 Country of ref document: EP |