WO2023018217A1 - 빌리루빈의 합성 방법 - Google Patents
빌리루빈의 합성 방법 Download PDFInfo
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- WO2023018217A1 WO2023018217A1 PCT/KR2022/011915 KR2022011915W WO2023018217A1 WO 2023018217 A1 WO2023018217 A1 WO 2023018217A1 KR 2022011915 W KR2022011915 W KR 2022011915W WO 2023018217 A1 WO2023018217 A1 WO 2023018217A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/44—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having three double bonds between ring members or between ring members and non-ring members
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/409—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil having four such rings, e.g. porphine derivatives, bilirubin, biliverdine
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing three or more hetero rings
Definitions
- the present invention relates to a novel method for synthesizing bilirubin.
- Bilirubin is a component of bile and is produced in the body primarily from hemoglobin. Bilirubin is a yellowish final metabolite formed from heme, and although it has many hydrophilic groups, it is extremely hydrophobic due to intramolecular hydrogen bonding.
- Bilirubin was considered an unnecessary substance as it caused jaundice when the blood level was high. However, in a recently published study, it was found that a slightly higher blood concentration of bilirubin significantly lowered the possibility of developing cardiovascular disease or cancer. and tissue-protecting effects were confirmed through animal experiments.
- bilirubin is an industrially useful substance, it has been obtained by extracting from animals and has never been successfully synthesized. When bilirubin is extracted from animals, it is difficult to obtain in large quantities and the production cost is high. In addition, since bilirubin extracted from animals is a mixture of three regioisomers, it must undergo an additional separation and purification process to be used as a medicine. It is urgent to develop a method capable of chemically producing bilirubin.
- An object of the present invention is to provide a method for synthesizing bilirubin.
- a method for synthesizing bilirubin comprising the step of preparing a compound represented by Formula 3 by coupling a compound represented by Formula 1 with a compound represented by Formula 2:
- R 1 and R 2 are each independently hydrogen, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, a heteroaryl group having 2 to 20 carbon atoms, and a C 7 to 20 carbon atom group.
- An arylalkyl group or a heteroarylalkyl group having 3 to 20 carbon atoms R 3 is a vinyl group or an acetyl group, or an ethyl group substituted with a hydroxyl group, carbamate, selenide or sulfide group, R 4 is a hydrogen or nitrogen protecting group, and R 5 is hydrogen, tosyl or mesyl).
- R 1 is the same as R 1 in Formula 1, X is an aryl alkyl ester group having 8 to 20 carbon atoms, -CH 2 OH, -COOH, a halogen atom or hydrogen).
- R 4 is the same as R 4 in Formula 2).
- R 4 is the same as R 4 in Formula 2).
- R 4 is the same as R 4 in Formula 2).
- R 4 is the same as R 4 in Formula 2).
- R is an alkyl group having 1 to 12 carbon atoms, and R 4 is the same as R 4 in Formula 2).
- R 4 and R 5 are the same as R 4 and R 5 in Formula 2).
- the method for synthesizing bilirubin of the present invention can be economically performed under mild conditions.
- the method for synthesizing bilirubin of the present invention has a high yield and is suitable for mass production.
- 1 to 4 are 2D NMR data of F-13a prepared in Example 13.
- 2 is HSQC
- FIG. 3 is COSY
- FIG. 4 is NOESY data.
- the present invention relates to a novel method for synthesizing bilirubin.
- alkyl is a straight or branched, substituted or unsubstituted chain hydrocarbon. eg methyl, ethyl, n-propyl, isopropyl, cyclopropyl, n-butyl, sec-butyl, tert-butyl, cyclobutyl, cyclopropylmethyl, n-pentyl, isopentyl, neopentyl, tert-pentyl, cyclopentyl , cyclobutylmethyl, n-hexyl, isohexyl, cyclohexyl, cyclopentylmethyl.
- cycloalkyl is a monocyclic or bicyclic, substituted or unsubstituted cyclic hydrocarbon. eg cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl and the like.
- tetrahydropyranyl group azetidyl group, 1,4-dioxanyl group, piperazinyl group, piperidinyl group, pyrrolidinyl group, morpholinyl group, thiomorpholinyl group, dihydrofuranyl group, dihydroimida zolyl group, dihydroindolyl group.
- aryl is a monocyclic or bicyclic, substituted or unsubstituted aromatic group.
- Aryl includes, for example, phenyl, 1-naphthyl, 2-naphthyl, 1-anthryl, 2-anthryl, 9-anthryl, benzanthryl, 1-phenanthryl, 2-phenanthryl, 3-phenanthryl [c ]phenanthryl, benzo[g]chrysenyl, 1-triphenylenyl, 2-triphenylenyl, 3-triphenylenyl, 4-triphenylenyl, 1-fluorenyl, 2-fluorenyl, 3-flu Orenyl, 4-fluorenyl, 9-fluorenyl, benzofluorenyl, dibenzofluorenyl, 2-biphenylyl, 3-biphenylyl, 4-biphenylyl, o-terphenyl, m -terphenyl-4-yl, m-terphenyl-3-yl, m-terphenyl-2-yl, p-terpheny
- arylalkyl refers to an alkyl group in which at least one of the substituents is substituted with aryl, and "aryl" and “alkyl” are as defined above.
- heteroarylalkyl refers to an alkyl group in which at least one of the substituents is substituted with heteroaryl, and heteroaryl and alkyl are as defined above.
- heteroaryl and alkyl are as defined above.
- substituted refers to at least one substituent, such as a halogen atom, nitro, hydroxy, cyano, amino, thiol, carboxyl, amide, nitrile, sulfide, disulfide, sulfenyl, formyl, formyloxy, formylamino , formylamino, aryl or substituted aryl.
- substituent such as a halogen atom, nitro, hydroxy, cyano, amino, thiol, carboxyl, amide, nitrile, sulfide, disulfide, sulfenyl, formyl, formyloxy, formylamino , formylamino, aryl or substituted aryl.
- the present invention relates to a method for synthesizing bilirubin comprising the step of preparing a compound represented by Formula 3 by coupling a compound represented by Formula 1 with a compound represented by Formula 2.
- R 1 and R 2 are each independently selected from hydrogen, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 20 carbon atoms, a heteroaryl group having 2 to 20 carbon atoms, and an aryl group having 7 to 20 carbon atoms. It is an alkyl group or a heteroarylalkyl group having 3 to 20 carbon atoms.
- the number of carbon atoms in R 1 and R 2 may be appropriately selected within a range that does not affect the coupling reaction between the compound represented by Formula 1 and the compound represented by Formula 2.
- R 1 and R 2 are each independently an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, a heteroaryl group having 2 to 10 carbon atoms, an arylalkyl group having 7 to 10 carbon atoms, or a heteroarylalkyl group having 3 to 10 carbon atoms.
- R 1 and R 2 are each independently selected from an alkyl group having 1 to 5 carbon atoms, an aryl group having 6 to 10 carbon atoms, a heteroaryl group having 4 to 10 carbon atoms, an arylalkyl group having 7 to 10 carbon atoms, or a heteroaryl group having 5 to 10 carbon atoms. It may be an alkyl group.
- R 3 is a vinyl group or an acetyl group; or an ethyl group substituted with a hydroxy group, carbamate, selenide or sulfide.
- the carbamate is a functional group having a structure of Formula 4 below.
- R is an alkyl group having 1 to 12 carbon atoms or an alkyl group having 1 to 5 carbon atoms.
- Selenide is a functional group having a structure of Formula 5 below, and sulfide is a functional group having a structure of Formula 6 below.
- R X may be hydrogen, or a substituted or unsubstituted, straight-chain or branched alkyl group, cycloalkyl group, heterocycloalkyl group, aryl group, heteroaryl group, arylalkyl group or heteroarylalkyl group.
- R X is an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 5 to 20 carbon atoms, a heterocycloalkyl group having 2 to 20 carbon atoms, an aryl group having 5 to 20 carbon atoms, a heteroaryl group having 2 to 20 carbon atoms, and a heterocycloalkyl group having 6 to 20 carbon atoms. It is an arylalkyl group or a C3-C20 heteroarylalkyl group.
- R X is a phenyl group or a p-tolyl group.
- R 3 may be an ethyl group substituted with a hydroxy group.
- it is a functional group in which a hydroxyl group is substituted at the position of carbon 1 of an ethyl group.
- R 3 may be an ethyl group substituted with a carbamate.
- it is a functional group in which a carbamate is substituted at the position of carbon 2 of an ethyl group.
- R 3 may be an ethyl group substituted with selenide.
- it is a functional group in which selenide is substituted at the position of carbon 2 of the ethyl group.
- R 3 may be an ethyl group substituted with sulfide.
- it is a functional group in which a sulfide is substituted at the position of carbon 2 of an ethyl group.
- R 4 is a hydrogen or nitrogen protecting group.
- the nitrogen-protecting group is not limited to a specific one as long as it is a substituent capable of protecting the nitrogen atom to which R 4 is bonded.
- -COOR x R x is as defined above
- tert-butyloxycarbonyl Boc
- trityl -CPh 3
- tosyl group SOOPhCH 3
- Fmoc 9-fluorenylmethyloxycarbonyl
- p-methoxybenzyl (PMB) 3,4-dimethoxybenzyl (DMPM) , p-methoxyphenyl (PMP), 2-naphthylmethyl ether (Nap), and trichloroethyl chloroformate (Troc).
- R 5 is hydrogen, a tosyl group ( , Ts or Tos) or mesyl group ( , Ms.
- the compound represented by Formula 1 and the compound represented by Formula 2 are bonded in a molar ratio of 1:2.
- the compound represented by Formula 1 and the compound represented by Formula 2 may be added at a molar ratio of 1: 2 to 10, 1: 2 to 5, 1: 2 to 4, or 1: 2 to 3 depending on the reaction.
- the coupling reaction is carried out in the presence of a solvent and base.
- the solvent is an inorganic solvent or an organic solvent.
- the organic solvent is, for example, alcohols, ethers, ketones, aliphatic hydrocarbons, aromatic hydrocarbons, halogenated hydrocarbons, alkoxyses, nitriles or amides. Solvents belonging to these classes are listed in Table 1, for example.
- the inorganic solvent is, for example, water.
- the base is an organic base or an inorganic base.
- the base is preferably a stronger base than the compound represented by formula (2).
- an amine-based organic base As the organic base, it is preferable to use an amine-based organic base. Chains such as methylamine, ethylamine, dimethylamine, diethylamine, ethylmethylamine, propylamine, dipropylamine, methylpropylamine, ethylpropylamine, diisopropylamine, N-methylcyclohexylamine or trimethylamine type amine organic bases, or aziridine, azetidine, oxaziridine, azetidine, diazetidine, imidazolidine, pyrazolidine, oxazolidine, isoxazolidine, thiazolidine, isothiazolidine , Piperidine, 2-methylpiperidine, 2-ethylpiperidine, 2,6-dimethylpiperidine, N-methylpiperidine, N-ethylpiperidine, 2,6-dimethylpiperidine , 2,2,6,6-tetramethylpiper
- the organic base is preferably piperidine, pyrrolidine, morpholine, piperazine, azepane, azocaine, N-methylpiperidine, N-ethylpiperidine or proline.
- the inorganic base may be, for example, LiOH, KOH or NaOH.
- the coupling reaction temperature of the present invention is -20°C to 200°C. 30 °C to 180 °C, 30 °C to 150 °C, 30 °C to 120 °C, 30 °C to 100 °C, 40 °C to 150 °C, 40 °C to 140 °C, 40 °C to 120 °C, 40 °C to 100 °C, 50 °C to 150 °C, 50 °C to 120 °C or 50 °C to 100 °C.
- the optimum reaction temperature may vary depending on the solvent and base used.
- the coupling reaction time of the present invention is 10 minutes to 120 hours. 1 hour to 72 hours, 1 hour to 48 hours, 1 hour to 24 hours, 3 hours to 72 hours, 3 hours to 48 hours, 3 hours to 24 hours, 6 hours to 72 hours, 6 hours to 48 hours or 6 hour to 24 hours.
- the optimal reaction time may vary depending on the solvent and base used.
- the method for synthesizing bilirubin of the present invention may further include converting R 1 and/or R 2 of the compound represented by Formula 3 into hydrogen through a saponification reaction.
- R 1 and R 2 of the compound represented by Formula 3 are methyl groups
- a base such as LiOH, KOH or NaOH is added to the compound represented by Formula 3 to replace the methyl group with hydrogen.
- the solvent used for the saponification reaction is not particularly limited.
- the same solvent as for the coupling reaction can be used.
- methanol, ethanol, 2-propanol, tetrahydrofuran (THF), 2-methyltetrahydrofuran (ME-THF), dioxane, acetonitrile, N,N-dimethylformamide (DMF), t-butanol, dimethicone It may be toxyethane (DME), dichloromethane (DCM) or isopropyl alcohol or the like.
- the saponification reaction can be carried out under conditions known in the art. For example, it may be performed at 10 to 150 ° C for 1 to 72 hours, or at 10 to 60 ° C for 1 to 48 hours.
- the method for synthesizing bilirubin of the present invention may further include a pegylation step of reacting the compound represented by Chemical Formula 3 with polyethylene glycol (PEG).
- PEG polyethylene glycol
- the method for synthesizing bilirubin of the present invention may include a step of coupling the resulting product with the compound represented by Formula 2 after pegylation of the compound represented by Formula 1 with polyethylene glycol (PEG).
- PEG polyethylene glycol
- PEGylated bilirubin has improved water solubility.
- n is the number of -CH 2 -CH 2 -O- repeating units of methoxypolyethylene glycol-amine, 5 to 60, 10 to 50, 10 to 40, 20 to 40, 10 to 30, or 20 to 30 can be a dog
- PEGylation includes monoPEGylation in which either OR 1 and OR 2 are PEGylated, and biPEGylation in which both OR 1 and OR 2 are PEGylated.
- polyethylene glycol may be added in an appropriate amount considering the number of moles of the compound represented by Formula 1 or Formula 3.
- polyethylene glycol is present in an amount of 0.1 to 10 moles, 0.1 to 8 moles, 0.1 to 5 moles, 0.3 to 8 moles, 0.3 to 5 moles, or 0.3 moles to 1 mole of the compound represented by Formula 1 or Formula 3. 4 moles or 0.3 to 3 moles may be added.
- CDI 1,1-carbonyldiimidazole, 1,1-Carbonyldiimidazole
- CMPI 2-chloro-1-methylpyridinium iodide, 2-Chloro-1-methylpyridinium iodide
- BEP (2-Bromo-1-ethyl-pyridinium tetrafluoroborate, 2-Bromo-1-ethyl-pyridinium tetrafluoroborate
- EDCI 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, 1 -Ethyl-3-(3-dimethylaminopropyl)carbodiimide
- HATU 1-[bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxide hexafluoro Rophosphate, 1-[Bis(dimethylamino)
- reagent for the pegylation reaction based on 1 mole of the compound represented by Formula 1 or Formula 3 may be added. It may be, but is not limited thereto.
- the solvent for the pegylation reaction is not particularly limited.
- the same solvent as for the coupling reaction may be used.
- it may be DMSO (Dimethyl Sulfoxide), DMF (Dimethylformamide), DMA (Dimethylacetamide) or pyridine.
- the pegylation reaction may be carried out in the presence of a base.
- the base may be selected from the ranges previously exemplified as bases in the coupling reaction, and may preferably be DIPEA (N,N-Diisopropylethylamine) or pyridine.
- the pegylation reaction may be carried out at 10 °C to 100 °C, such as 10 °C to 80 °C, 20 °C to 60 °C, 20 °C to 50 °C, or 20 °C to 30 °C.
- the pegylation reaction may be carried out for 1 hour to 24 hours, 1 hour to 18 hours, and 1 hour to 12 hours, but is not limited thereto.
- the pegylation reaction is performed by adding 0.3 to 5 moles of polyethylene glycol and 0.5 to 5 moles of a coupling reagent (CDI, EDCI, CMPI, etc.) to 1 mole of the compound represented by Formula 1 or Formula 3, and It may be performed at 40° C. for 0.5 to 24 hours.
- a coupling reagent CDI, EDCI, CMPI, etc.
- the compound represented by Formula 1 and the compound represented by Formula 2, which are reactants in the method for synthesizing bilirubin of the present invention, can be prepared as follows.
- R 1 in Formula 7 is the same as R 1 in Formula 1, and X is an aryl alkyl ester group having 8 to 20 carbon atoms, -CH 2 OH, -COOH, a halogen atom, or hydrogen.
- the aryl alkyl ester group is a functional group in which R Y in Formula 8 is an arylalkyl group.
- the arylalkyl group of Formula 8 is the same as the arylalkyl group of Formula 1.
- the number of carbon atoms in the aryl alkyl ester group may be appropriately selected within a range that does not affect the dimerization reaction of the compound represented by Formula 7. For example, it may have 8 to 20 carbon atoms, 8 to 18 carbon atoms, 8 to 15 carbon atoms, or 8 to 12 carbon atoms.
- Methods for substituting X of the product with an aldehyde group are, for example, as follows (1) to (5).
- the hydrogenation reaction may be carried out over a Pd/C catalyst.
- the halogen atom is substituted with an aldehyde group by a carbonylation reaction.
- a known method can be used for the carbonylation reaction.
- the carbonylation reaction can be carried out using carbon monoxide and palladium.
- the dimerization reaction of the compound represented by Formula 6 may be carried out under, for example, bromine (Br 2 ) conditions.
- the solvent for the dimerization reaction is not particularly limited.
- the organic solvent the solvents in Table 1 exemplified as coupling reaction solvents may be used.
- the dimerization reaction may be performed at 10 °C to 100 °C, for example, 10 °C to 80 °C, 20 °C to 60 °C, 20 °C to 50 °C, or 20 °C to 30 °C.
- the dimerization reaction may be performed for 1 hour to 24 hours, 1 hour to 18 hours, and 1 hour to 12 hours, but is not limited thereto.
- R 4 is the same as R 4 in Formula 2.
- the oxidation reaction of the compound represented by Formula 9 may be performed in the presence of H 2 O 2 and pyridine.
- the oxidation reaction of the compound represented by Formula 9 may be performed within a range of solvent, temperature, time, etc. in the coupling reaction.
- R 4 is the same as R 4 in Formula 2 above.
- the reaction of reducing the acetyl group may be performed by a known method, and the conditions may be performed within a range of solvent, temperature, time, and the like in the coupling reaction.
- the acetyl group can be reduced using MeOH as a solvent and NaBH 4 and CeCl 3 7H 2 O as a reduction reaction reagent, or THF as a solvent and DIBAL as a reduction reaction reagent.
- R 4 is the same as R 4 in Formula 2.
- the reaction of dehydrating the hydroxyl group may be performed by a known method, and the conditions may be performed within a range of the solvent, temperature, time, and the like in the previous coupling reaction.
- the hydroxyl group may be dehydrated using DCM (dichloromethane) as a solvent and POCl 3 and TEA as reaction reagents.
- R 4 is the same as R 4 in Formula 2.
- the cyclization reaction of the compound represented by Formula 12 may be performed under CuCl and acetonitrile (ACN), and the halogen removal reaction may be performed under DMF. Cyclization of the compound represented by Chemical Formula 12 and halogen elimination produces a compound represented by Chemical Formula 2 below.
- R 4 is the same as R 4 in Formula 2, and R is the same as R in Formula 4.
- Oxidation and carbamatement of the compound represented by Formula 13 may be performed in the following steps.
- the oxidation reaction of the compound represented by Formula 13 may be carried out, for example, in the presence of H 2 O 2 and pyridine. Carbamation can then be carried out, for example, by treatment with NH 2 NH 2 followed by treatment with NaNO 2 /HCl and an alcohol. Each reaction may be carried out within a range of solvent, temperature, time, etc. in the coupling reaction, but is not limited thereto.
- Y is selenide
- R 4 is the same as R 4 in Formula 2.
- the cyclization reaction of the compound represented by Formula 14 may be performed under t-BuOK, and may be performed within a range of solvent, temperature, time, etc. in the coupling reaction.
- a compound represented by Chemical Formula 2 is prepared.
- Z is sulfide
- R 4 and R 5 are the same as R 4 and R 5 in formula (2).
- the oxidation reaction of the compound represented by Formula 15 may be performed by treating TFA/H 2 O.
- the oxidation reaction of the compound represented by Formula 15 may be performed within a range of a solvent, temperature, time, etc. in the coupling reaction.
- R 5 is a tosyl group or a mesyl group
- a coupling reaction with the compound represented by Formula 1 may be performed after removing the tosyl group. Removal of the tosyl group or the mesyl group may be performed by a known method, for example, by treating NaBH 4 .
- R 3 of the compound represented by Formula 3 of the present invention is an acetyl group;
- a step of converting these substituents to a vinyl group should be additionally performed.
- R 3 is an acetyl group
- conversion to a vinyl group can be accomplished by reduction and dehydration of the acetyl group.
- Reduction and dehydration of acetyl groups can be performed by known methods.
- R 3 is an ethyl group substituted with a hydroxyl group
- conversion to a vinyl group can be carried out by a dehydration reaction of the hydroxyl group.
- the dehydration reaction of the hydroxyl group can be performed by a known method.
- R 3 is an ethyl group substituted with a carbamate
- conversion to a vinyl group may be carried out by Hofmann elimination reaction after deprotection reaction.
- the compound represented by Chemical Formula 3 (compound D-Gd) can be converted into a vinyl group (compound F-13a) by removing the protecting group and removing the Hoffman in the presence of LiOH as follows.
- R 3 is an ethyl group substituted with selenide
- the conversion to a vinyl group can be carried out by an oxidation reaction of selenide.
- the compound of Formula 3 may be converted into a vinyl group by oxidation in the presence of HOAc and H 2 O 2 as follows.
- R 3 is an ethyl group substituted with a sulfide
- conversion to a vinyl group can be carried out by an oxidation reaction of sulfide.
- the compound of Formula 3 may be oxidized with mCPBA and then deprotected with pyridine as follows.
- Lithium hydroxide (LiOH . H 2 O) (2.75 g, 65.6 mmol, 6.6 equiv) was added to a mixture of methanol (100 mL) and water (100 mL) and Compound C (4.00 g, 9.94 mmol, 1.0 equiv) of Example 1 above. added. The mixture was stirred at 25° C. for 16 hours and then diluted with water (100 mL). 1M hydrochloric acid was added dropwise to the mixture to adjust the pH to 2-3. Thereafter, the precipitate was filtered and dried to obtain Compound D (3.49 g, 9.32 mmol, yield: 94%) corresponding to the compound represented by Chemical Formula 1 herein in a purple solid state.
- Acetic anhydride (31.0 g, 304 mmol, 1.5 g, 304 mmol, 1.5 equivalent) was added slowly at 0 °C and stirred at 25 °C for 16 h. The reaction was quenched with aqueous NaHCO 3 (100 mL) and then extracted with DCM (50 mL x 4). The combined organic layer was washed with brine (50 mL x 2), dried over anhydrous Na 2 SO 4 , filtered and concentrated under reduced pressure to obtain the compound Ge-4 in the form of a brown oil (65.5 g, yield: >99%). ) was obtained.
- ACN of TosMIC (5.00 g, 16.8 mmol, 0.9 equiv) in ACN (50 mL) mixture of compound Ge-4 (3.61 g, 18.5 mmol, 1.0 equiv) and DBU (5.63 g, 37.0 mmol, 2.0 equiv) prepared above. (10 mL) was added dropwise in a nitrogen environment -40°C and the mixture was stirred at 25°C for 16 hours. The mixture was diluted with water (100 mL) and then extracted with EtOAc (100 mL x 2). The combined organic layers were washed with brine (100 mL), dried over anhydrous Na 2 SO 4 , filtered and concentrated under reduced pressure to give a residue. The residue was purified by silica gel chromatography to obtain compound Ge-5 (3.47 g, 9.00 mmol, yield: 53%) in the form of a red oil.
- PhMe 3 NBr 3 (3.31 g, 8.56 mmol, 1.1 equiv) was added to a DCM (78 mL) mixture of the compound Ge-5 (3 g, 7.78 mmol, 1.0 equiv) prepared above and stirred at 0 °C for 1 hour. made it NaHSO 3 aqueous solution (50 mL) was added to the mixture to terminate the reaction, followed by extraction with DCM (80 mL) and washing of the organic layer with water (50 mL). The combined organic layer was dried over anhydrous Na 2 SO 4 , filtered and concentrated under reduced pressure to obtain compound Ge-6 (3.25 g, 7.00 mmol, yield: 90%).
- benzenelenol (71.5 ⁇ L, 0.65 mmol, 5.0 equiv) was added to a mixture of compound Gf-5 (40 mg, 0.13 mmol, 1.0 equiv) prepared above in pyridine (1.5 mL), and the mixture was stirred in a microwave/150°C for 10 minutes. After removing pyridine under reduced pressure and high temperature, aqueous NH 4 Cl solution (20 mL) was added and extraction was performed with DCM (20 mL). The combined organic layer was dried over anhydrous Na 2 SO 4 , filtered and concentrated under reduced pressure to obtain compound Gf-6.
- F-13a corresponding to the compound represented by Formula 3 was prepared by coupling the compound D of Example 2 with the compound Ga of Example 5.
- Azepane (8.0 equivalents) and compound Ga (2.5 equivalents) were added to a mixture of compound D (1.0 equivalents) and dioxane, and stirred for 16 hours under nitrogen conditions at 100°C.
- the reaction conversion rate was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion rate calculated by standardization was 12%.
- D-Gb corresponding to the compound represented by Formula 3 was prepared by coupling the compound D of Example 2 with the compound Gb of Example 6, and compound F-13a was prepared therefrom.
- D-Gc corresponding to the compound represented by Formula 3 was prepared by coupling the compound D of Example 2 and the compound Gc of Example 7, and compound F-13a was prepared therefrom.
- D-Gd corresponding to the compound represented by Formula 3 was prepared by coupling the compound D of Example 2 and the compound Gd of Example 8, and compound F-13a was prepared therefrom.
- D-Ge corresponding to the compound represented by Formula 3 was prepared by coupling the compound D of Example 2 and the compound Ge of Example 10, and compound F-13a was prepared therefrom.
- D-Gf corresponding to the compound represented by Formula 3 was prepared by coupling the compound D of Example 2 and the compound Gf of Example 12, and compound F-13a was prepared therefrom.
- Compound C-Ga corresponding to the compound represented by Formula 3 was prepared by coupling the compound C of Example 1 and the compound Ga of Example 5, and compound F-13a was prepared therefrom.
- Morpholine (8.0 equiv.) and compound Ga (2.5 equiv.) were added to a mixture of compound C (1.0 equiv.) and dioxane, and stirred for 16 hours under nitrogen conditions at 25°C.
- the reaction conversion rate was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion rate calculated by standardization was 4%.
- Morpholine (8.0 equiv.) and compound Ga (2.5 equiv.) were added to a mixture of compound C (1.0 equiv.) and dioxane, and stirred for 16 hours under nitrogen conditions at 100°C.
- the reaction conversion rate was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion rate calculated by standardization was 18%.
- Azepane (8.0 equivalents) and compound Ga (2.5 equivalents) were added to a mixture of compound C (1.0 equivalents) and dioxane, and the mixture was stirred at 100° C. for 16 hours under nitrogen conditions.
- the reaction conversion rate was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion rate calculated by standardization was 21%.
- Azepane (8.0 equivalents) and compound Ga (2.5 equivalents) were added to a mixture of compound C (1.0 equivalents) and dioxane, and the mixture was stirred at 100° C. for 16 hours under nitrogen conditions.
- the reaction conversion rate was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion rate calculated by standardization was 13%.
- Compound FP-13a was prepared by pegylating F-13a corresponding to the compound represented by Formula 3 (Examples 45 to 50).
- a DMF mixture of compound F-13a (1.0 eq) was stirred at 25° C. for 15 minutes.
- a DMF mixture of EDCI (1.1 equiv.), pentafluorophenol (1.1 equiv.), and DIPEA (1.1 equiv.) was added dropwise.
- a DMF mixture of mPEG 36 -NH 2 (0.4 eq.) was added and stirred at 25°C for 3 hours.
- the reaction conversion was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion calculated by standardization was 10%.
- a DCM/DMA mixture of compound F-13a (1.0 eq) was stirred at 25° C. for 15 min. To this mixture was added dropwise a DCM/DMA mixture of DCC (1.0 equiv.) and HOAt (0.2 equiv.). After stirring at 25°C for 2 hours, a DCM/DMA mixture of mPEG 36 -NH 2 (0.4 eq.) was added and stirred at 25°C for 16 hours. The reaction conversion was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion calculated by standardization was 15%.
- LCMS liquid chromatography mass spectrometry
- a DMA mixture of compound F-13a (1.0 eq) was stirred at 25° C. for 15 minutes.
- DMA mixture of DCC (1.5 eq.) was added dropwise to this mixture.
- a DMA mixture of mPEG 36 -NH 2 (0.4 eq.) was added and stirred at 25°C for 16 hours.
- the reaction conversion was measured by liquid chromatography mass spectrometry (LCMS), and the reaction conversion calculated by standardization was 18%.
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Abstract
Description
| 구분 | 유기용매 |
| 알코올류 | 메탄올, 에탄올, 프로판올, 이소프로판올, 에틸렌글리콜 |
| 에테르류 | 디에틸에테르, 테트라하이드로퓨란(THF), 2-메틸테트라하이드로퓨란, 다이옥산 |
| 케톤류 | 메틸셀로솔브, 에틸셀로솔브, 부틸셀로솔브, 메틸에틸케톤, 아세톤 |
| 지방족 탄화수소류 | 헥산, 헵탄, 옥탄 |
| 방향족 탄화수소류 | 벤젠, 톨루엔, 자일렌 |
| 할로겐화탄화수소류 | 디클로로메탄(DCM), 클로로포름, 클로로벤젠 |
| 알콕시류 | 메톡시에탄, 디메톡시에탄(DME), 메톡시프로판, 디메톡시프로판 |
| 나이트릴류 | 아세토나이트릴, 벤조나이트릴, 트라이나이트릴 |
Claims (17)
- 하기 화학식 1로 표시되는 화합물과 하기 화학식 2로 표시되는 화합물을 커플링시켜 화학식 3으로 표시되는 화합물을 제조하는 단계를 포함하는 빌리루빈의 합성 방법:[화학식 1][화학식 2][화학식 3](위 화학식 1, 2 및 3에서, R1 및 R2는 서로 독립적으로 수소, 탄소수 1 내지 12의 알킬기, 탄소수 6 내지 20의 아릴기, 탄소수 2 내지 20의 헤테로아릴기, 탄소수 7 내지 20의 아릴알킬기 또는 탄소수 3 내지 20의 헤테로아릴알킬기이고, R3는 바이닐기 또는 아세틸기; 또는 히드록시기, 카바메이트, 셀레나이드 또는 설파이드로 치환된 에틸기이며, R4는 수소 또는 질소 보호기고, R5는 수소, 토실기 또는 메실기임).
- 청구항 1에 있어서, 상기 화학식 3으로 표시되는 화합물을 폴리에틸렌글리콜(PEG)과 반응시키는 단계를 더 포함하는, 빌리루빈의 합성 방법.
- 청구항 1에 있어서, 상기 화학식 1로 표시되는 화합물을 폴리에틸렌글리콜(PEG)과 반응시킨 후 상기 화학식 2로 표시되는 화합물과 커플링시키는, 빌리루빈의 합성 방법.
- 청구항 1에 있어서, 상기 화학식 3으로 표시되는 화합물로부터 빌리루빈을 제조하는 단계를 더 포함하는 빌리루빈의 합성 방법.
- 청구항 1에 있어서, 상기 단계는 피페리딘, N-메틸피페리딘, N-에틸피페리딘, 2,6-디메틸 피페리딘, 2,2,6,6-테트라메틸 피페리딘, 3-메틸피페리딘, 3-에틸피페리딘, 1-메틸-4-(메틸아미노) 피페리딘,4-아미노 피페리딘, 피롤리딘, 2-피롤리딘 카르복사미드, 피롤리딘-3-올, 피페라진, 2,6-디메틸피페라진, 1-벤질 피페라진, 1-이소프로필 피페라진, 2-에틸 피페라진, 모르폴린, 4-메틸 모르폴린, 2,6-디메틸 모르폴린, 에틸 모르폴린, 아제페인, 2-메틸 아제페인, 4-메틸 아제페인, 2,2,7,7-테트라메틸 아제페인, 1,2,2-트리메틸 아제페인, 1,2-디메틸아제페인, 2,7-디메틸 아제페인, 메틸아제페인-4-카르복실레이트, 아조케인, 2-메틸 아조케인, 1,2-디메틸아조케인, 1,2,2-트리메틸아조케인, 메틸아조케인-2-카르복실레이트, 1-메틸아조케인 및 2-(2-메틸페닐)아조케인으로 이루어진 군에서 선택되는 염기의 존재 하에서 수행되는, 빌리루빈의 합성 방법.
- 청구항 1에 있어서, 상기 단계는 물, 알코올류, 에테르류, 케톤류, 지방족 탄화수소류, 방향족 탄화수소류, 할로겐화탄화수소류, 알콕시류, 나이트릴류 및 아미드류로 이루어진 군에서 선택되는 용매의 존재 하에서 수행되는, 빌리루빈의 합성 방법.
- 청구항 1에 있어서, 상기 단계는 -20℃ 내지 200℃에서 수행되는 빌리루빈의 합성 방법.
- 청구항 1에 있어서, 상기 단계는 0.5 내지 120 시간 동안 수행되는 빌리루빈의 합성 방법.
- 청구항 13에 있어서, 상기 염기는 상기 화학식 1로 표시되는 화합물 1몰 기준으로 2 내지 20 몰로 첨가되는, 빌리루빈의 합성 방법.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP22856214.6A EP4375280A4 (en) | 2021-08-11 | 2022-08-10 | Method for synthesizing bilirubin |
| US18/291,337 US20250122154A1 (en) | 2021-08-11 | 2022-08-10 | Method for synthesizing bilirubin |
| CN202280055150.5A CN117813301A (zh) | 2021-08-11 | 2022-08-10 | 胆红素的合成方法 |
| JP2024508078A JP2024531164A (ja) | 2021-08-11 | 2022-08-10 | ビリルビンの合成方法 |
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| KR20210106107 | 2021-08-11 | ||
| KR10-2021-0106107 | 2021-08-11 | ||
| KR1020220099692A KR102553483B1 (ko) | 2021-08-11 | 2022-08-10 | 빌리루빈의 합성 방법 |
| KR10-2022-0099692 | 2022-08-10 |
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| WO2023018215A1 (ko) * | 2021-08-11 | 2023-02-16 | 주식회사 빌릭스 | 빌리루빈의 합성 방법 |
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Non-Patent Citations (5)
| Title |
|---|
| BROWER, J.O. LIGHTNER, D.A. MCDONAGH, A.F.: "Aromatic congeners of bilirubin: synthesis, stereochemistry, glucuronidation and hepatic transport", TETRAHEDRON, ELSEVIER SIENCE PUBLISHERS, AMSTERDAM, NL, vol. 57, no. 37, 10 September 2001 (2001-09-10), AMSTERDAM, NL , pages 7813 - 7827, XP004304424, ISSN: 0040-4020, DOI: 10.1016/S0040-4020(01)00773-6 * |
| BROWER, J.O. LIGHTNER, D.A. MCDONAGH, A.F.: "Synthesis of a New Lipophilic Bilirubin. Conformation, Transhepatic Transport and Glucuronidation", TETRAHEDRON, ELSEVIER SIENCE PUBLISHERS, AMSTERDAM, NL, vol. 56, no. 40, 29 September 2000 (2000-09-29), AMSTERDAM, NL , pages 7869 - 7883, XP004217288, ISSN: 0040-4020, DOI: 10.1016/S0040-4020(00)00710-9 * |
| DEY SANJEEV K., LIGHTNER DAVID A.: "Toward an Amphiphilic Bilirubin: The Crystal Structure of a Bilirubin E -Isomer", THE JOURNAL OF ORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY, vol. 73, no. 7, 1 April 2008 (2008-04-01), pages 2704 - 2714, XP093035017, ISSN: 0022-3263, DOI: 10.1021/jo702593x * |
| SABIDO PORTIA MAHAL G., LIGHTNER DAVID A.: "Synthesis and properties of mesobilirubins XIIγ and XIIIγ and their mesobiliverdins", MONATSHEFTE FÜR CHEMIE - CHEMICAL MONTHLY, SPRINGER VIENNA, VIENNA, vol. 145, no. 5, 1 May 2014 (2014-05-01), Vienna, pages 775 - 789, XP093035015, ISSN: 0026-9247, DOI: 10.1007/s00706-014-1160-6 * |
| SANJEEV K. DEY ; DAVID A. LIGHTNER: "Lipid and water-soluble bilirubins", MONATSHEFTE FÜR CHEMIE - CHEMICAL MONTHLY ; AN INTERNATIONAL JOURNAL OF CHEMISTRY, SPRINGER-VERLAG, AU, vol. 141, no. 1, 19 January 2010 (2010-01-19), AU , pages 101 - 109, XP019783265, ISSN: 1434-4475, DOI: 10.1007/s00706-009-0232-5 * |
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| KR102835661B1 (ko) | 2025-07-22 |
| US20250122154A1 (en) | 2025-04-17 |
| KR20230106560A (ko) | 2023-07-13 |
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