WO2015190506A1 - ヘテロ芳香族スルホンアミド化合物の製造方法 - Google Patents
ヘテロ芳香族スルホンアミド化合物の製造方法 Download PDFInfo
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- WO2015190506A1 WO2015190506A1 PCT/JP2015/066688 JP2015066688W WO2015190506A1 WO 2015190506 A1 WO2015190506 A1 WO 2015190506A1 JP 2015066688 W JP2015066688 W JP 2015066688W WO 2015190506 A1 WO2015190506 A1 WO 2015190506A1
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- sulfonic acid
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/62—Oxygen or sulfur atoms
- C07D213/70—Sulfur atoms
- C07D213/71—Sulfur atoms to which a second hetero atom is attached
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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
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/18—Sulfonamides
-
- 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
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/62—Oxygen or sulfur atoms
- C07D213/70—Sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
Definitions
- the present invention reacts a mixed sulfonic acid anhydride obtained from a heteroaromatic sulfonic acid compound and a perfluoroalkyl sulfonic acid anhydride or a perfluoroalkyl sulfonic acid halide, and reacts the obtained mixed sulfonic acid anhydride with an amine.
- the present invention relates to a method for producing a heteroaromatic sulfonamide compound.
- the method for producing a heteroaromatic sulfonamide compound of the present invention is a safer method than before, and is an industrially very useful method with a high yield and few by-products.
- the heteroaromatic sulfonamide compound obtained by the production method of the present invention is a compound useful as a pharmaceutical intermediate and a drug substance.
- Heteroaromatic sulfonamide compounds are useful compounds in various fields as medical and agrochemical products and organic materials, or as raw materials and intermediates thereof. Among them, in recent years, it has been reported that it is useful as a pharmaceutical, and a safe and simple production method is still desired (see, for example, Non-Patent Document 1).
- a heteroaromatic sulfonic acid and phosphorus pentachloride (PCl 5 ) or phosphorus oxychloride (POCl 3 ) are used to form a heteroaromatic sulfonyl chloride, and then an amine and A method for producing a sulfonamide compound by the reaction of has been reported (for example, see Patent Document 2).
- heteroaromatic sulfonyl chlorides used so far for the synthesis of heteroaromatic sulfonamide compounds are unstable in water, difficult to use and unfavorable for long-term storage. Moreover, when it is used in large quantities, it is difficult to obtain, has low thermal stability, is a dangerous compound that decomposes with abnormal heat generation by heating, and is not preferred as a compound for industrial use. Further, phosphorus pentachloride (PCl 5 ) and phosphorus oxychloride (POCl 3 ) are highly toxic and have an adverse effect on the environment. Further, since thiols have a bad odor, the method of using them is an industrial process. It is not preferable. Furthermore, the use of an oxidizing agent is not preferable as an industrial production method in that the operation is complicated by the treatment.
- the compound other than the target heteroaromatic sulfonamide compound is used.
- a large amount of p-nitrobenzenesulfonamide compound is produced as a by-product, and complicated post-treatment such as column chromatography is required to remove it.
- An object of the present invention is to provide a simple and industrially suitable production method capable of safely obtaining a heteroaromatic sulfonamide compound with a high yield.
- the present inventors have synthesized a heteroaromatic sulfonic acid compound and a perfluoroalkylsulfonic acid anhydride or a perfluoroalkylsulfonic acid halide.
- a heteroaromatic sulfonic acid compound and a perfluoroalkylsulfonic acid anhydride or a perfluoroalkylsulfonic acid halide.
- the reaction proceeds with high selectivity in a short time, and a safe, high-yield, high-purity heteroaromatic sulfonamide with few side reactions is obtained.
- the inventors have found an excellent production method and have arrived at the present invention.
- R 1 is a heteroaryl group which may have a substituent
- a sulfonylating agent selected from the group consisting of perfluoroalkyl sulfonic acid anhydrides and perfluoroalkyl sulfonic acid halides, and the general formula (1):
- R 2 is an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group, a heteroaryl group, an aralkyl group or a heteroarylalkyl group, which may have a substituent.
- General formula (4) obtained by reacting the mixed sulfonic acid anhydride represented by general formula (1) with the amine compound:
- R 1 is a heteroaryl group which may have a substituent
- R 1 is a heteroaryl group which may have a substituent
- R 2 is an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aryl group, a heteroaryl group, an aralkyl group or a heteroarylalkyl group which may have a substituent
- a high yield is obtained from the heteroaromatic sulfonic acid compound represented by the general formula (2) and the amine compound represented by the general formula (3) by a simple and industrially suitable method under mild conditions.
- a high-purity sulfonamide compound represented by the general formula (4) can be produced with good efficiency and selectivity.
- the heteroaromatic sulfonamide compound represented by the general formula (4) of the present invention comprises a heteroaromatic sulfonic acid represented by the general formula (2) and a perfluoroalkylsulfonic acid anhydride or a perfluoroalkylsulfone in the presence of a base.
- a mixed sulfonic acid anhydride represented by the general formula (1) is synthesized from the acid halide (reaction A), and then the obtained mixed sulfonic acid anhydride is reacted with an amine represented by the general formula (4) ( Reaction B) can be obtained (see [Reaction Formula I] below; however, only examples using perfluoroalkylsulfonic anhydrides are shown).
- Alkyl group means a monovalent group of linear or branched saturated aliphatic hydrocarbon. Typically, an alkyl group having 1 to 10 carbon atoms, such as a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group or a decyl group (various isomers) Are included).
- it is an alkyl group having 1 to 6 carbon atoms, such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, or a hexyl group, more preferably an alkyl group having 1 to 4 carbon atoms, For example, methyl group, ethyl group, propyl group, isopropyl group, butyl group or isobutyl group.
- perfluoroalkyl part of the “perfluoroalkyl group” and “perfluoroalkylsulfonic acid” means an alkyl group in which all the hydrogens of the “alkyl group” are replaced by fluorine atoms.
- a C 1-6 perfluoroalkyl group such as a trifluoromethyl group, a pentafluoroethyl group (perfluoroethyl group), a heptafluoropropyl group (perfluoropropyl group), a nonafluorobutyl group ( Perfluorobutyl group), undecafluoropentyl group (perfluoropentyl group), tridecafluorohexyl group (perfluorohexyl group) and the like (including various isomers).
- a C 1-6 perfluoroalkyl group such as a trifluoromethyl group, a pentafluoroethyl group (perfluoroethyl group), a heptafluoropropyl group (perfluoropropyl group), a nonafluorobutyl group ( Perfluorobutyl group), undecafluoropentyl group (perfluoropentyl
- a perfluoroalkyl group having 1 to 4 carbon atoms such as a trifluoromethyl group, a pentafluoroethyl group, a heptafluoropropyl group, and a nonafluorobutyl group is preferable, and a trifluoromethyl group is more preferable.
- Alkenyl group means a monovalent group of unsaturated aliphatic hydrocarbon which is linear or branched and contains at least one carbon-carbon double bond. Typically, an alkenyl group having 2 to 10 carbon atoms, such as a vinyl group, a propenyl group, a butenyl group, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, or a decenyl group (including various isomers) Is mentioned.
- it is an alkenyl group having 2 to 6 carbon atoms, such as a vinyl group, a propenyl group, a butenyl group, a pentenyl group or a hexenyl group, and more preferably an alkenyl group having 2 to 4 carbon atoms such as a vinyl group, 1 -Propenyl group, 2-propenyl group, 1-butenyl group or 2-butenyl group.
- Alkynyl group means a monovalent group of an unsaturated aliphatic hydrocarbon which is linear or branched and contains at least one carbon-carbon triple bond.
- an alkynyl group having 2 to 10 carbon atoms such as an ethynyl group, a propynyl group, a butynyl group, a pentynyl group, a hexynyl group, a heptynyl group, an octynyl group, a noninyl group, a decynyl group, etc. Is mentioned.
- it is an alkynyl group having 2 to 6 carbon atoms, such as an ethynyl group, propynyl group, butynyl group, pentynyl group or hexynyl group, more preferably an alkynyl group having 2 to 4 carbon atoms such as an ethynyl group, 2 -Propynyl group, 3-butynyl group or 2-butynyl group.
- Cycloalkyl group means a monovalent group of a cyclic saturated aliphatic hydrocarbon.
- a cycloalkyl group having 3 to 10 carbon atoms such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group, a cyclononyl group, a cyclodecyl group, and the like can be given.
- a cycloalkyl group having 3 to 8 carbon atoms such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cyclohexyl group, or a cyclooctyl group, and more preferably a cycloalkyl group having 3 to 6 carbon atoms.
- a cyclopropyl group, a cyclobutyl group, a cyclopentyl group or a cyclohexyl group such as a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group.
- Aryl group means a monovalent group of monocyclic or condensed polycyclic aromatic hydrocarbons. Typically, an aryl group having 6 to 14 carbon atoms, such as a phenyl group, a naphthyl group, or an anthryl group, and the like, preferably an aryl group having 6 to 10 carbon atoms, such as a phenyl group, a 1-naphthyl group, and the like. Or a 2-naphthyl group.
- Heteroaryl group means a monovalent group of a monocyclic or fused polycyclic aromatic heterocyclic compound containing at least one heteroatom selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom To do.
- 5- to 10-membered heteroaryl groups such as pyrrolyl, imidazolyl, pyrazolyl, triazolyl, pyridyl, pyrimidinyl, pyridazinyl, indolyl, quinolyl; thienyl, benzothienyl; Furyl group, benzofuranyl group; oxazolyl group, isoxazolyl group, thiazolyl group, isothiazolyl group, oxadiazolyl group, thiadiazolyl group and the like (including various isomers).
- a 5- to 6-membered heteroaryl group for example, 2-pyrrolyl group, 3-pyrrolyl group, 1-pyrazolyl group, 1,2,4-triazol-1-yl group, 2-pyridyl group, 3-pyridyl group Group, 4-pyridyl group, 2-pyrimidinyl group, 4-pyridazinyl group, 2-thienyl group, 3-thienyl group, 2-furyl group, 3-furyl group, 2-thiazolyl group or 4-thiazolyl group.
- Alkyl group means an alkyl group substituted with an aryl group.
- the “aryl group” and the “alkyl group” are as defined above.
- an aralkyl group having 7 to 14 carbon atoms such as benzyl group, phenethyl group, phenylpropyl group, phenylbutyl group, naphthylmethyl group, naphthylethyl group (including various isomers) and the like are preferable.
- Is an aralkyl group having 7 to 10 carbon atoms for example, a benzyl group, a 1-phenethyl group, a 2-phenethyl group, a 3-phenylpropyl group, or a 4-phenylbutyl group.
- Heteroarylalkyl group means an alkyl group substituted with a heteroaryl group.
- the “heteroaryl group” and the “alkyl group” are as defined above.
- a 6 to 14 membered heteroarylalkyl group such as a pyrrolylmethyl group, pyrrolylethyl group, imidazolylmethyl group, imidazolylethyl group, pyrazolylmethyl group, pyrazolylethyl group, triazolylmethyl group, triazolylethyl group , Pyridylmethyl group, pyridylethyl group, pyrimidinylmethyl group, pyrimidinylethyl group, pyridazinylmethyl group, pyridazinylethyl group, indolylmethyl group, indolylethyl group, quinolylmethylethyl group; Thienylmethyl group, thienyleth
- a 6 to 10 membered heteroarylalkyl group for example, 2-pyridylmethyl group, 3-pyridylmethyl group, 2-pyrimidinylmethyl group, 5-pyrimidinylmethyl group, 2-indolylmethyl group, 5-indolyl group A methyl group, a 2-benzofuranylmethyl group, a 5-indolylmethyl group, a 2-benzothienylmethyl group or a 5-benzothienylmethyl group;
- Halide such as “perfluoroalkylsulfonic acid halide” means a halogen atom, for example, a fluorine atom, a chlorine atom, a bromine atom or an iodine atom, preferably a chlorine atom or a bromine atom, more preferably Is a chlorine atom.
- R 1 represents a heteroaryl group which may have a substituent.
- “which may have a substituent” means, unless otherwise specified, that the subsequent group has at least one substituent and no substituent (that is, non-substituent). It is meant to encompass both.
- the “heteroaryl group optionally having a substituent” is “a heteroaryl group having no substituent” or “a heteroaryl group having a substituent”.
- R 1 is a pyridyl group which may have a substituent.
- the “optionally substituted heteroaryl group (particularly pyridyl group)” in R 1 is preferably a 5- to 10-membered heteroaryl group (particularly pyridyl group); or a halogen atom, hydroxy 5 substituted with one, two or three substituents selected from the group consisting of a group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, an amino group, a cyano group and a nitro group
- halogen atom or “halo” means a fluorine atom, a chlorine atom, a bromine atom or an iodine atom.
- Preferred is a fluorine atom, a chlorine atom or a bromine atom, more preferred is a fluorine atom or a chlorine atom, and particularly preferred is a fluorine atom.
- an alkoxy group having 1 to 4 carbon atoms means a group —OR (wherein R is an alkyl group having 1 to 4 carbon atoms as defined above).
- R is an alkyl group having 1 to 4 carbon atoms as defined above.
- Examples of the alkoxy group having 1 to 4 carbon atoms include methoxy group, ethoxy group, propyloxy group, isopropyloxy group, butyloxy group and isobutyloxy group.
- heteroaryl group having no substituent examples include, for example, 2-furyl group, 3-furyl group, 2-pyridyl group, 3-pyridyl group, 4-pyridyl group, 2-pyrrolyl group, 3-pyrrolyl group Group, 2-thienyl group, 3-thienyl group, 2-indolyl group, 3-indolyl group, 2-imidazolyl group, 4-imidazolyl group, 3-pyrazolyl group, 2-pyrimidinyl group, 4-pyrimidinyl group or quinolyl group, etc.
- Heteroaryl groups (these groups include various isomers), preferably 2-pyridyl group, 3-pyridyl group or 4-pyridyl group.
- Examples of the “substituted heteroaryl group” include, for example, 2- (3-methyl) furyl group, 2- (4-methyl) furyl group, 2- (3-ethyl) furyl group, 2- (4-ethyl) ) Furyl group, 2- (3-fluoro) furyl group, 2- (3-chloro) furyl group, 2- (3-hydroxy) furyl group, 2- (3-methoxy) furyl group, 2- (3-amino) ) Furyl group, 2- (3-nitro) furyl group, 2- (3-cyano) furyl group, 2- (3-methyl) pyridyl group, 2- (4-methyl) pyridyl group, 2- (3-ethyl) ) Pyridyl group, 2- (4-ethyl) pyridyl group, 2- (3-fluoro) pyridyl group, 2- (4-chloro) pyridyl group, 2- (3-hydroxy) pyridyl group, 2- (3-methoxy ) Pyridyl group, 2- (3
- R 2 is an alkyl group, alkenyl group, alkynyl group, cycloalkyl group, aryl group, heteroaryl group, aralkyl group or heteroaryl which may have a substituent. It is an alkyl group.
- alkyl group optionally having substituent “Alkenyl group optionally having substituent”, “Alkynyl group optionally having substituent” or “having substituent” in R 2
- substituent of “optionally cycloalkyl group” include a halogen atom; a hydroxy group; an alkoxy group having 1 to 10 carbon atoms; an optionally substituted amino group; a cyano group; or a nitro group. Etc. Two or more substituents may be the same or different.
- substituents of the “heteroarylalkyl group which may be present” include a halogen atom; an alkyl group having 1 to 10 carbon atoms; an alkenyl group having 2 to 10 carbon atoms; an alkynyl group having 2 to 10 carbon atoms; An aryl group which may have a group; a heteroaryl group which may have a substituent; an aralkyl group which may have a substituent; a heteroarylalkyl group which may have a substituent; Alkoxy group having 1 to 10 carbon atoms; alkoxy alkoxy group having 2 to 20 carbon atoms; acyl group having 2 to 11 carbon atoms; alkoxycarbonyl group having 2 to 11 carbon atoms; alkoxycarbon
- an aryl group which may have a substituent “heteroaryl group which may have a substituent”, “aralkyl group which may have a substituent” or “ Examples of the substituent of the “optionally substituted heteroarylalkyl group” include a halogen atom; an alkyl group having 1 to 10 carbon atoms; an alkenyl group having 2 to 10 carbon atoms; and an alkynyl having 2 to 10 carbon atoms. Group: an alkoxy group having 1 to 10 carbon atoms; a haloalkyl group having 1 to 4 carbon atoms; a cyano group; or a nitro group. Two or more substituents may be the same or different.
- an alkoxy group having 1 to 10 carbon atoms means a group —OR (wherein R is an alkyl group having 1 to 10 carbon atoms as defined above).
- R is an alkyl group having 1 to 10 carbon atoms as defined above.
- Examples of the alkoxy group having 1 to 10 carbon atoms include methoxy group, ethoxy group, propoxy group, butoxy group, pentyloxy group, hexyloxy group, heptyloxy group, octyloxy group, nonyloxy group, decyloxy group, etc. Body).
- it is an alkoxy group having 1 to 6 carbon atoms, such as a methoxy group, ethoxy group, propyloxy group, isopropyloxy group, butyloxy group, isobutyloxy group or hexyloxy group, more preferably 1 to 4 carbon atoms.
- An alkoxy group such as a methoxy group, an ethoxy group, a propyloxy group, an isopropyloxy group, a butyloxy group or an isobutyloxy group.
- an “alkoxyalkoxy group having 2 to 20 carbon atoms” means an alkoxy group having 1 to 10 carbon atoms substituted with an alkoxy group having 1 to 10 carbon atoms.
- the “alkoxy group having 1 to 10 carbon atoms” has the same meaning as described above.
- An alkoxyalkoxy group having 2 to 8 carbon atoms is preferable, and an alkoxyalkoxy group having 2 to 4 carbon atoms, such as a methoxymethoxy group, a methoxyethoxy group, an ethoxymethoxy group, or an ethoxyethoxy group, is more preferable.
- acyl group having 2 to 11 carbon atoms means a group —C ( ⁇ O) —R (wherein R is an alkyl group having 1 to 10 carbon atoms as defined above).
- R is an alkyl group having 1 to 10 carbon atoms as defined above.
- examples of the acyl group having 2 to 11 carbon atoms include acetyl group, propionyl group, butyryl group, valeryl group, hexanoyl group, octanoyl group and decanoyl group (including various isomers).
- it is an alkoxycarbonyl group having 2 to 7 carbon atoms, more preferably an alkoxycarbonyl group having 2 to 5 carbon atoms, such as acetyl group, propionyl group, butyryl group, isobutyryl group, valeryl group, isovaleryl group or pivaloyl. It is a group.
- alkoxycarbonyl group having 2 to 11 carbon atoms means a group —C ( ⁇ O) —OR (wherein R is an alkyl group having 1 to 10 carbon atoms as defined above).
- R is an alkyl group having 1 to 10 carbon atoms as defined above.
- Examples of the C2-C11 alkoxycarbonyl group include a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, a butoxycarbonyl group, a pentyloxycarbonyl group, a hexyloxycarbonyl group, a heptyloxycarbonyl group, an octyloxycarbonyl group, Nonyloxycarbonyl group or decyloxycarbonyl group (including various isomers).
- it is an alkoxycarbonyl group having 2 to 7 carbon atoms, such as a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, an isopropoxycarbonyl group, a butoxycarbonyl group, a tert-butoxycarbonyl group or a hexyloxy group, more preferably Is an alkoxycarbonyl group having 2 to 5 carbon atoms, for example, a methoxycarbonyl group, an ethoxycarbonyl group, a propoxycarbonyl group, an isopropoxycarbonyl group, a butoxycarbonyl group or a tert-butoxycarbonyl group.
- an “alkoxycarbonylalkyl group having 3 to 21 carbon atoms” means an alkyl group having 1 to 10 carbon atoms substituted with an alkoxycarbonyl group having 2 to 11 carbon atoms.
- the “alkoxycarbonyl group having 2 to 11 carbon atoms” and the “alkyl group having 1 to 10 carbon atoms” have the same meanings as described above.
- Preferred is an alkoxycarbonylalkyl group having 3 to 11 carbon atoms, and more preferred is an alkyl group having 1 to 4 carbon atoms substituted with an alkoxycarbonyl group having 2 to 5 carbon atoms (that is, having 3 to 9 carbon atoms).
- Alkoxycarbonylalkyl group for example, methoxycarbonylmethyl group, ethoxycarbonylmethyl group, propoxycarbonylmethyl group, isopropoxycarbonylmethyl group, butoxycarbonylmethyl group, tert-butoxycarbonylmethyl group, methoxycarbonylethyl group, ethoxycarbonylethyl group A propoxycarbonylethyl group, an isopropoxycarbonylethyl group, a butoxycarbonylethyl group or a tert-butoxycarbonylethyl group.
- the “C3-C21 alkoxycarbonylalkoxy group” means a C1-C10 alkoxy group substituted with a C2-C11 alkoxycarbonyl group.
- the “alkoxycarbonyl group having 2 to 11 carbon atoms” and the “alkoxy group having 1 to 10 carbon atoms” have the same meanings as described above.
- it is an alkoxycarbonylalkoxy group having 3 to 11 carbon atoms, more preferably an alkoxy group having 1 to 4 carbon atoms substituted with an alkoxycarbonyl group having 2 to 5 carbon atoms (ie, having 3 to 9 carbon atoms).
- Alkoxycarbonylalkoxy group for example, methoxycarbonylmethoxy group, ethoxycarbonylmethoxy group, propoxycarbonylmethoxy group, isopropoxycarbonylmethoxy group, butoxycarbonylmethoxy group, tert-butoxycarbonylmethoxy group, methoxycarbonylethoxy group, ethoxycarbonylethoxy group , Propoxycarbonylethoxy group, isopropoxycarbonylethoxy group, butoxycarbonylethoxy group or tert-butoxycarbonylethoxy group.
- the “aryloxy group having 6 to 14 carbon atoms” means a group —OR ′ (where R ′ is an aryl having 6 to 14 carbon atoms as defined above).
- R ′ is an aryl having 6 to 14 carbon atoms as defined above.
- Examples of the aryloxy group having 6 to 14 carbon atoms include a phenoxy group, a naphthyloxy group, and an anthryloxy group.
- An aryloxy group having 6 to 10 carbon atoms such as a phenoxy group, 1-naphthyloxy group or 2-naphthyloxy group is preferable.
- aralkyloxy group having 7 to 14 carbon atoms means a group —OR ′′ (where R ′′ is an aralkyl group as defined above).
- R ′′ is an aralkyl group as defined above.
- the aralkyloxy group having 7 to 14 carbon atoms such as benzyloxy group, phenethyloxy group, phenylpropyloxy group, phenylbutyloxy group, naphthylmethyloxy group, naphthylethyloxy group, etc. Included).
- An aralkyloxy group having 7 to 10 carbon atoms for example, a benzyloxy group, a 1-phenethyloxy group, a 2-phenethyloxy group, a 3-phenylpropyloxy group, or a 3-phenylbutyloxy group is preferable.
- haloalkyl group having 1 to 4 carbon atoms means an alkyl group having 1 to 4 carbon atoms substituted with one or more halogen atoms.
- halo and alkyl group having 1 to 4 carbon atoms are as defined above.
- Examples of haloalkyl groups having 1 to 4 carbon atoms include fluoromethyl group, difluoromethyl group, trifluoromethyl group, 2-fluoroethyl group, 2,2-difluoroethyl group, 2,2,2-trifluoroethyl group , A pentafluoroethyl group or a nonafluorobutyl group.
- the fluoroalkyl group having 1 to 2 carbon atoms for example, fluoromethyl group, difluoromethyl group, trifluoromethyl group, 2-fluoroethyl group, 2,2-difluoroethyl group, 2,2,2-trifluoro An ethyl group or a pentafluoroethyl group.
- amino group optionally having substituent (s) in the example of the substituent means an amino group or an amino group having 1 or 2 substituents.
- substituents include an alkyl group having 1 to 10 carbon atoms; an alkoxycarbonylalkyl group having 3 to 20 carbon atoms; or an acyl group having 2 to 10 carbon atoms.
- the two substituents may be the same or different.
- R 2 in the general formulas (1), (3) and (4) is an aralkyl group which may have a substituent.
- R 2 in the general formulas (1), (3) and (4) is a benzyl group which may have a substituent.
- the “aralkyl group (particularly benzyl group) which may have a substituent” for R 2 includes an aralkyl group (particularly benzyl group); or a halogen atom, an alkyl group having 1 to 10 carbon atoms, and a carbon number 2 -10 alkenyl group, alkynyl group having 2 to 10 carbon atoms, aryl group optionally having substituent, heteroaryl group optionally having substituent, aralkyl optionally having substituent Group, optionally substituted heteroarylalkyl group, alkoxy group having 1 to 10 carbon atoms, alkoxyalkoxy group having 2 to 20 carbon atoms, aryloxy group having 6 to 14 carbon atoms, 7 to 14 carbon atoms An aralkyloxy group, an aralkyl group substituted with one, two or three substituents selected from the group consisting of a haloalkyl group having 1 to 4 carbon atoms, a cyano group and a nitro group (in
- the “optionally substituted aralkyl group (especially benzyl group)” in R 2 is preferably an aralkyl group having 7 to 10 carbon atoms (particularly benzyl group); or a halogen atom, 1 to carbon atoms 4 alkyl groups, aryl groups optionally having substituents, heteroaryl groups optionally having substituents, alkoxy groups having 1 to 4 carbon atoms, alkoxyalkoxy groups having 2 to 4 carbon atoms, carbon 1, 2 or 3 substituents selected from the group consisting of an aryloxy group having 6 to 10 carbon atoms, an aralkyloxy group having 7 to 10 carbon atoms, a haloalkyl group having 1 to 4 carbon atoms, a cyano group and a nitro group And an aralkyl group having 7 to 10 carbon atoms (particularly a benzyl group) substituted with Two or more substituents may be the same or different.
- the “optionally substituted aralkyl group (particularly benzyl group)” in R 2 is more preferably an aralkyl group having 7 to 10 carbon atoms (particularly benzyl group); An aralkyl group having 7 to 10 carbon atoms (particularly a benzyl group) substituted with an optionally substituted aryl group or an optionally substituted heteroaryl group.
- the aralkyl group which may have a substituent in R 2 is more preferably a benzyl group, a phenethyl group, a 3-phenylpropyl group or a 4-phenylbutyl group; a biphenyl-4-ylmethyl group, a 2′-ethoxybiphenyl group.
- the “perfluoroalkyl group” in R 3 is a perfluoroalkyl group having 1 to 6 carbon atoms, such as a trifluoromethyl group, a pentafluoroethyl group, a heptafluoropropyl group, a nonafluorobutyl group, an undecafluoropentyl group. Group, tridecafluorohexyl group and the like (including various isomers).
- it is a perfluoroalkyl group having 1 to 4 carbon atoms, such as trifluoromethyl group, pentafluoroethyl group, heptafluoropropyl group, nonafluorobutyl group, more preferably trifluoromethyl group or nonafluorobutyl group.
- the amine compound represented by the general formula (3) is represented by the general formula (5): It is an amine compound shown by.
- the present invention relates to a heteroaromatic sulfonic acid compound represented by the general formula (2), in the presence or absence of an organic solvent, in the presence or absence of a base, perfluoroalkylsulfonic acid anhydride or perfluoro A mixed sulfonic acid anhydride (1) was synthesized by reacting an alkyl sulfonic acid halide (reaction A). Subsequently, the amine compound represented by the general formula (3) was added to the obtained mixed sulfonic acid anhydride (1). This is carried out by the method of reacting to synthesize the sulfonamide compound (4) (Reaction B). The mixed sulfonic acid anhydride (1) obtained in the reaction A can be used for the reaction B without isolation.
- the heteroaromatic sulfonic acid compound represented by the general formula (2) used in the present invention may be a commercially available product or can be synthesized by a known method.
- Examples of the heteroaromatic sulfonic acid compound used in the present invention include pyridine-2-sulfonic acid, pyridine-3-sulfonic acid, pyridine-4-sulfonic acid, 4-methylpyridine-2-sulfonic acid, and 1H-pyrrole- 2-Sulphonic acid, thiophene-2-sulfonic acid, thiophene-3-sulfonic acid, furan-2-sulfonic acid or furan-3-sulfonic acid.
- commercially available products were used.
- the perfluoroalkyl sulfonic acid anhydride or perfluoroalkyl sulfonic acid halide used in the present invention may be a commercially available product, but preferably has a purity of 95% or more, and more preferably has a purity of 98% or more. is there.
- the perfluoroalkylsulfonic anhydride used in the present invention is, for example, trifluoromethanesulfonic anhydride, pentafluoroethanesulfonic anhydride, heptafluoropropanesulfonic anhydride or nonafluorobutanesulfonic anhydride
- the perfluoroalkylsulfonic acid halide used in the invention is, for example, trifluoromethanesulfonic acid chloride, pentafluoroethanesulfonic acid chloride, heptafluoropropanesulfonic acid chloride, or nonafluorobutanesulfonic acid chloride.
- commercially available products are used. It was.
- the amount of perfluoroalkylsulfonic acid anhydride or perfluoroalkylsulfonic acid halide to be used is, for example, 0.5 to 10 mol, preferably 1 to 1 mol of the heteroaromatic sulfonic acid compound represented by the general formula (2). 0.5 to 5 mol, more preferably 0.8 to 2 mol, particularly preferably 0.8 to 1.5 mol.
- reaction A can be carried out in the presence of a base.
- the base used in the reaction of the present invention may be any base that does not affect the reaction.
- aliphatic amines such as triethylamine, tributylamine, diisopropylethylamine, pyridine, N, N-dimethyl-4-amino
- Aromatic amines such as pyridine, preferably aromatic amines, more preferably pyridine or N, N-dimethyl-4-aminopyridine.
- the amount of the base to be used is, for example, 0.01 to 10 mol, preferably 0.05 to 5 mol, more preferably 0.1 mol, per 1 mol of the heteroaromatic sulfonic acid compound represented by the general formula (2). 1 to 2 moles.
- a base is pyridine etc., it can also be used in large quantities as a solvent.
- reaction B a base is not particularly required, but when the mixed sulfonic acid anhydride is synthesized in reaction A and reaction B is carried out in the system as it is, the base used in reaction A remains as it is. May be.
- the reaction of the present invention can be carried out in the presence of an organic solvent.
- the organic solvent used in the reaction of the present invention may be any organic solvent that does not participate in the reaction.
- a nitrile organic solvent such as acetonitrile or benzonitrile
- N, N-dimethylformamide, N, N-dimethyl Amide solvents such as acetamide, N-methylpyridone, dimethylimidazole or 1,3-dimethyl-2-imidazolidinone
- halogenated organic solvents such as methylene chloride, chloroform or 1,2-dichloroethane
- n-pentane Aliphatic hydrocarbon solvents such as n-hexane, n-heptane, n-octane, cyclopentane, cyclohexane or cyclopentane
- aromatic hydrocarbon solvents such as benzene, toluene or xylene; diethyl ether,
- Organic solvent halogen organic solvent, nitrile organic solvent or aromatic amine solvent, more preferably halogen organic solvent, nitrile organic solvent and aromatic amine solvent, particularly preferably methylene chloride. , Acetonitrile, pyridine. In addition, you may use these organic solvents individually or in mixture of 2 or more types.
- the amount of the organic solvent used is, for example, 1 to 200 mL, preferably 2 to 100 mL, more preferably 5 to 50 mL with respect to 1 g of the heteroaromatic sulfonic acid compound represented by the general formula (1).
- reaction B The reaction of the present invention can be carried out in the presence of an organic solvent.
- the organic solvent used in the reaction of the present invention may be an organic solvent that does not participate in the reaction, and examples thereof include the same organic solvent as in Reaction A.
- the organic solvent used in reaction A can be used as it is, or may be newly added.
- the amine compound represented by the general formula (3) used in the present invention may be a commercial product or may be synthesized by a known method.
- the amine compound shown by the Example of this invention is compoundable by the method shown by patent document 1, for example.
- the amount of the amine compound used is, for example, 0.5 to 10 mol, preferably 0.8 to 5 mol, more preferably 0, relative to 1 mol of the heteroaromatic sulfonic acid compound represented by the general formula (2). .9 to 2 moles.
- reaction temperature in the reaction of the present invention is, for example, ⁇ 20 to 200 ° C., preferably 0 to 100 ° C., more preferably 10 to 80 ° C.
- reaction pressure in the reaction of the present invention is not particularly limited, but it is preferably performed under normal pressure.
- the production apparatus of the present invention is not particularly limited, and can be performed by a general production apparatus such as a reaction vessel, a heating (cooling) apparatus, a distillation apparatus (for example, Dean Stark trap).
- a general production apparatus such as a reaction vessel, a heating (cooling) apparatus, a distillation apparatus (for example, Dean Stark trap).
- the heteroaromatic sulfonamide compound represented by the general formula (3) obtained by the method of the present invention is further subjected to general methods such as distillation, liquid separation, extraction, crystallization, recrystallization and column chromatography. Further purification is possible.
- the structure of the obtained target product was confirmed by IR, NMR spectrum analysis and the like. Furthermore, the reaction yield (internal standardization method) and chemical purity were measured using high performance liquid chromatography (HPLC).
- N-benzylpyridine-3-sulfonamide having a purity of 81.1% (pure content 0.81 g, 3.3 mmol) was added to 4 ml of 4N aqueous sodium hydroxide solution, water 3. 0 ml and 3.2 g of toluene were added, and the mixture was stirred at room temperature for 1 hour. The insoluble material was filtered off and separated, and the resulting aqueous layer was washed with 1 ml of toluene. 5N hydrochloric acid was added to the aqueous layer until the pH was in the range of 3 to 4, and the mixture was stirred at room temperature for 30 minutes.
- the precipitated solid was filtered, washed with water and then vacuum dried at 50 ° C. to obtain 0.78 g of a light brown powder.
- the obtained powder contained about 99.7% of the target N-benzylpyridine-3-sulfonamide (59% yield based on benzylamine).
- reaction yield 40.4% 407 mg (1.94 mmol) of 4- (1H-pyrazol-1-yl) benzylamine hydrochloride synthesized in the same manner as described in Reference Example 2 was added to the reaction mixture in small portions. Stir at the same temperature for 1 hour. After completion of the reaction, a mixed solution of acetonitrile / water (7/3 (V / V)) was added to the reaction mixture to obtain a homogeneous solution, and quantitative analysis was performed by high performance liquid chromatography. As a result, 246 mg of the target product was contained. (Reaction yield 40.4%).
- the reaction was carried out at 26 ° C. to 38 ° C. for about 7.5 hours, and the inside of the container was replaced with nitrogen, and then left at room temperature for about 2.5 days.
- the mixture was filtered through Celite, and the filtrate was concentrated until the liquid volume became 497 g, and then 165 mL of ethanol was added and concentrated until the liquid volume became 371 g.
- Ethanol (165 mL) was added again and the solution was concentrated to 198 g.
- the present invention reacts a mixed sulfonic acid anhydride obtained from a heteroaromatic sulfonic acid compound and a perfluoroalkyl sulfonic acid anhydride or a perfluoroalkyl sulfonic acid halide, and reacts the obtained mixed sulfonic acid anhydride with an amine.
- the present invention relates to a method for producing a heteroaromatic sulfonamide compound.
- the method for producing a heteroaromatic sulfonamide compound of the present invention is a safer method than before, and is an industrially very useful method with a high yield and few by-products.
- the heteroaromatic sulfonamide compound obtained by this production is a compound useful as a pharmaceutical intermediate and a drug substance.
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Abstract
Description
また、5塩化リン(PCl5)およびオキシ塩化リン(POCl3)は毒性が高く、また環境へ悪影響を及ぼすことから、さらにチオールは悪臭があることから、これらを使用する方法は工業的な製法として好ましくない。更に酸化剤の使用も、その処理等で操作が煩雑となる点で工業的な製法として好ましくない。
1) 一般式(2):
で示されるスルホン酸化合物と、パーフルオロアルキルスルホン酸無水物およびパーフルオロアルキルスルホン酸ハライドからなる群より選択されるスルホニル化剤とを反応させることによる、一般式(1):
2) 一般式(3):
3)(A)一般式(2):
で示されるスルホン酸化合物と、パーフルオロアルキルスルホン酸無水物またはパーフルオロアルキルスルホン酸ハライドからなる群より選択されるスルホニル化剤とを反応させる工程、次いで
(B)工程(A)で得られた反応液に、一般式(3):
で示されるアミン化合物を添加し、反応させる工程を含む、一般式(4):
で示されるスルホンアミド化合物の製造方法に関する。
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
1H-NMR(DMSO, δ(ppm)); 4.11 (2H, s), 6.53 (1H, dd, J=1.7Hz), 7.33 (2H, d, J=8.8Hz), 7.56-7.61 (4H, m), 7.70-7.74 (1H, m), 8.12-8.45 (2H, m), 8.47 (1H, s), 8.92-8.93 (1H, m).
IR(KBr cm-1); 459, 487, 546, 561, 592, 615, 629, 650, 698, 719, 743, 766, 810, 900, 937, 1029, 1060, 1116, 1163 (S=O), 1194, 1209, 1250, 1321, 1333, 1393, 1419, 1466, 1526 (C=N), 1582, 1612, 2666, 2779, 2843, 3047, 3126, 3142, 3436 (N-H).
元素分析;Calcd: C, 57.31%; H, 4.49%; N, 17.82%
Found: C, 57.04%; H, 4.24%; N, 17.71%.
N-ベンジルピリジン-3-スルホンアミドの合成
1H-NMR(DMSO, δ(ppm)); 4.07 (2H, s), 7.20-7.29 (5H, m), 7.55-7.59 (1H, m), 8.10-8.13 (1H, m), 8.43 (1H, s), 8.77 (1H, dd, J=1.6Hz, 4.8Hz), 8.90 (1H, dd, J=0.7Hz, 2.4Hz).
IR(KBr cm-1); 463, 529, 544, 587, 611, 629, 696, 747, 806, 817, 857, 903, 928, 992, 1028, 1036, 1072, 1111, 1123, 1168 (S=O), 1196, 1231, 1320, 1339, 1421, 1456, 1484, 1496, 1584, 1954, 2698, 2785, 2859, 3036, 3063, 3440 (N-H).
元素分析;Calcd: C, 58.05%; H, 4.87%; N, 11.28%
Found: C, 58.08%; H, 4.87%; N, 11.27%.
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-2-スルホンアミドの合成
1H-NMR(DMSO, δ(ppm)); 4.20 (2H, s), 6.53 (1H, dd, J=2.4Hz, 1.8Hz), 7.35 (2H, d, J=8.7Hz), 7.62-7.65 (1H, m), 7.72-7.74 (3H, m), 7.90-7.92 (1H, m), 8.02-8.04 (1H, m), 8.44-8.45 (2H, m), 8.71-8.73 (1H, m).
IR(KBr cm-1); 417, 462, 495, 552, 593, 619, 648, 658, 720, 741, 760, 777, 809, 850, 892, 916, 936, 992, 1017, 1031, 1047, 1090, 1122, 1156, 1176 (S=O), 1203, 1232, 1253, 1296, 1316, 1331, 1361, 1398, 1410, 1429, 1443, 1452, 1526 (C=N), 1564, 1578, 1612, 1683, 1734, 1780, 1898, 2934, 3070, 3113, 3133, 3281, 3441 (N-H).
元素分析;Calcd: C, 57.31%; H, 4.49%; N, 17.82%
Found: C, 57.33%; H, 4.61%; N, 17.73%.
N-ブチルピリジン-3-スルホンアミドの合成
1H-NMR(DMSO,δ(ppm));0.79 (3H, dd, J=7.3Hz), 1.18-1.27 (2H, m), 1.31-1.38 (2H, m), 2.79 (2H, ddd, J=5.7Hz), 7.63-7.67 (1H, m), 7.82 (1H, dd, J=5.2Hz), 8.15-8.18 (1H, m), 8.82 (1H, dd, J=4.8Hz, 1.6Hz), 8.94 (1H, dd, J=2.4Hz, 0.7Hz).
IR(KBr cm-1); 456, 572, 592, 622, 704, 742, 807, 866, 906, 981, 1026, 1085, 1109, 1122, 1166(S=O), 1196, 1225, 1323, 1381, 1417, 1467, 1575 (C=N), 2874, 2935, 2961, 3095, 3287, 3580.
元素分析;Calcd: C, 50.45%; H, 6.59%; N, 13.07%
Found: C, 50.16%; H, 6.58%; N, 12.95%.
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
N-[4-(1H-ピラゾール-1-イル)ベンジル]ピリジン-3-スルホンアミドの合成
4-(1H-ピラゾール-1-イル)ベンゾニトリルの合成
撹拌装置、温度計および上部冷却管を備えた内容積約1Lのガラス製容器に、4-フルオロベンゾニトリル121g(1.00mol)、ピラゾール81.9g(1.20mol)、炭酸カリウム165g(1.19mol)、ジメチルスルホキシド320mLを室温で混合し、115℃から120℃の間で7時間反応させた後、室温で一晩放置した。水500mLおよびトルエン500mLを加えて撹拌した後、ろ過し、ろ液を分液後、水層をトルエン300mLで再抽出し、得られた混合有機層を合わせて内容量が223gとなるまで減圧濃縮した。ジイソプロピルエーテル300mLを加え、氷浴中で30分間撹拌した後、ろ過し、ろ物を50℃で乾燥させて、標記化合物148gを淡黄色固体として得た。(4-フルオロベンゾニトリル基準の収率87.7%)。
1H-NMR(CDCl3,δ(ppm)); 6.53-6.55 (1H, m), 7.74-7.78 (3H, m), 7.84 (1H, dd, J=2.1Hz), 7.86 (1H, dd, J=2.1Hz), 8.00 (1H, d, J=2.6Hz)。
IR(KBr cm-1); 446, 546, 573, 607, 652, 714, 750, 771, 814, 836, 884, 913, 936, 962, 1032, 1044, 1053, 1128, 1177, 1186, 1200, 1253, 1316, 1344, 1393, 1407, 1438, 1514, 1529, 1611, 1657, 2228 (CN), 3067, 3138, 3154, 3421.
元素分析 ; Calcd: C, 70.99%; H, 4.17%; N, 24.84%
Found: C, 71.17%; H, 4.28%; N, 24.88%.
4-(1H-ピラゾール-1-イル)ベンジルアミン塩酸塩の合成
撹拌装置および温度計を備えた内容積約2Lのガラス製容器に、4-(1H-ピラゾール-1-イル)ベンゾニトリル70.0g(0.414mol)、エタノール826mLを加え、容器内をアルゴンで置換した。次に、濃塩酸40.2mL(0.482mol)、5%パラジウム炭素7g(約50%含水品、NEケムキャット製、STDタイプ)を加え、反応器内を水素で置換した。微加圧の水素雰囲気下、26℃~38℃で7.5時間ほど反応させ、容器内を窒素で置換した後、2.5日ほど室温放置した。水500mLを加えた後、セライトろ過し、ろ液を液量が497gとなるまで濃縮した後、エタノール165mLを加え、液量が371gとなるまで濃縮した。再びエタノール165mLを加え、液量が198gとなるまで濃縮した後、アセトニトリル180mLを添加し、約5℃にて一晩放置した後、ろ過し、不溶物をアセトニトリル90mLで洗浄した。得られたろ物を1時間ほど風乾させた後、50℃で減圧乾燥し、標記化合物61.0gを白色固体として得た。(4-(1H-ピラゾール-1-イル)ベンゾニトリル基準の収率70.3%)。
1H-NMR(DMSO, δ(ppm)); 4.05 (2H, s), 6.56 (1H, dd, J=2.4Hz, 1.8Hz), 7.63 (2H, d, J=8.6Hz), 7.76 (1H, d, J=1.6Hz), 7.88-7.91 (2H, m), 8.53-8.55 (4H, m).
IR(KCl cm-1); 448, 461, 538, 613, 635, 654, 725, 750, 766, 795, 835, 882, 915, 939, 971, 1034, 1055, 1079, 1120, 1208, 1219, 1254, 1318, 1338, 1382, 1397, 1414, 1444, 1470, 1485, 1532, 1597, 1615, 1673, 1728, 1919, 2047, 2224, 2359, 2554, 2584, 2696, 2758, 2897, 2971, 3000, 3113, 3134, 3412.
元素分析 ; Calcd: C, 57.28%; H, 5.77%; N, 20.04%
Found: C, 57.30%; H, 5.77%; N, 20.08%.
Claims (15)
- スルホニル化剤が、炭素数1~4のパーフルオロアルキルスルホン酸無水物または炭素数1~4のパーフルオロアルキルスルホン酸ハライドである、請求項1に記載の混合スルホン酸無水物の製造方法。
- スルホニル化剤が、トリフルオロメタンスルホン酸無水物、ペンタフルオロエタンスルホン酸無水物、ヘプタフルオロプロパンスルホン酸無水物、ノナフルオロブタンスルホン酸無水物、トリフルオロメタンスルホン酸クロリド、ペンタフルオロエタンスルホン酸クロリド、ヘプタフルオロプロパンスルホン酸クロリドまたはノナフルオロブタンスルホン酸クロリドである、請求項1に記載の混合スルホン酸無水物の製造方法。
- R1が、置換基を有していてもよいピリジル基である、請求項1に記載の混合スルホン酸無水物の製造方法。
- (A)一般式(2):
(式中、R1は、置換基を有していてもよいヘテロアリール基である)
で示されるスルホン酸化合物と、パーフルオロアルキルスルホン酸無水物またはパーフルオロアルキルスルホン酸ハライドからなる群より選択されるスルホニル化剤とを反応させる工程、次いで
(B)工程(A)で得られた反応液に、一般式(3):
(式中、R2は、置換基を有していてもよい、アルキル基、アルケニル基、アルキニル基、シクロアルキル基、アリール基、ヘテロアリール基、アラルキル基またはヘテロアリールアルキル基である)
で示されるアミン化合物を添加し、反応させる、一般式(4):
(式中、R1、R2は、前記と同義である)
で示されるスルホンアミド化合物の製造方法。 - R1が、置換基を有していてもよいピリジル基である、請求項5又は6に記載のスルホンアミド化合物の製造方法。
- R2が、置換基を有していてもよいアラルキル基である、請求項5又は6に記載のスルホンアミド化合物の製造方法。
- 反応温度が、10~80℃で行われることを特徴とする、請求項5~9のいずれか1項に記載のスルホンアミド化合物の製造方法。
- 有機溶媒として、ニトリル系有機溶媒、ハロゲン系有機溶媒、芳香族アミン系溶媒、またはそれらの混合物を使用する、請求項5~10のいずれか1項に記載のスルホンアミド化合物の製造方法。
- 有機溶媒として、アセトニトリル、塩化メチレン、ピリジンまたはそれらの混合物を使用する、請求項5~11のいずれか1項に記載のスルホンアミド化合物の製造方法。
- 塩基として、N,N-ジメチル-4-アミノピリジンまたはピリジンを使用する、請求項5~12のいずれか1項に記載のスルホンアミド化合物の製造方法。
- R1が、置換基を有していてもよいピリジル基である、請求項14に記載の混合スルホン酸無水物。
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2951790A CA2951790C (en) | 2014-06-10 | 2015-06-10 | Method for producing heteroaromatic sulfonamide compound |
| CN201580031028.4A CN106458903B (zh) | 2014-06-10 | 2015-06-10 | 杂芳族磺酰胺化合物的制造方法 |
| KR1020177000332A KR102374969B1 (ko) | 2014-06-10 | 2015-06-10 | 헤테로 방향족 술폰아미드 화합물의 제조 방법 |
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| US15/317,875 US10519112B2 (en) | 2014-06-10 | 2015-06-10 | Method for producing heteroaromatic sulfonamide compound |
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| WO2017162868A1 (en) | 2016-03-24 | 2017-09-28 | Syngenta Participations Ag | Microbiocidal oxadiazole derivatives |
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| JP7250685B2 (ja) | 2017-09-29 | 2023-04-03 | 参天製薬株式会社 | ピリジルアミノ酢酸化合物を含有する医薬 |
| CN111491636A (zh) | 2017-12-21 | 2020-08-04 | 参天制药株式会社 | 奥米帕格的组合 |
| JP6856107B2 (ja) * | 2018-12-26 | 2021-04-07 | ダイキン工業株式会社 | フルオロアルコキシドの製造方法 |
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| JP2002322054A (ja) | 2001-04-26 | 2002-11-08 | Dai Ichi Seiyaku Co Ltd | 薬剤排出ポンプ阻害薬 |
| DE602005016775D1 (de) | 2004-01-16 | 2009-11-05 | Wyeth Corp | Heterocyclische, ein azol enthaltende sulfonamidinhibitoren der beta-amyloid-produktion |
| EA012627B1 (ru) | 2005-03-16 | 2009-10-30 | Басф Акциенгезельшафт | N-(4-пиридил)метилсульфонамиды для борьбы с членистоногими вредителями |
| US7579504B2 (en) | 2005-12-07 | 2009-08-25 | Gilead Sciences, Inc. | ABCA1 elevating compounds |
| WO2008103615A1 (en) | 2007-02-21 | 2008-08-28 | Kalypsys, Inc. | Isoquinolines useful as inducible nitric oxide synthase inhibitors |
| DE102007061142A1 (de) | 2007-12-17 | 2009-06-18 | Olympus Winter & Ibe Gmbh | Hysteroskop mit einem Schaft |
| CA2742023A1 (en) | 2008-11-19 | 2010-05-27 | Wyeth Llc | Polar quinazolines as liver x receptors ( lxrs ) modulators |
| AR075442A1 (es) | 2009-02-16 | 2011-03-30 | Abbott Gmbh & Co Kg | Derivados de aminotetralina, composiciones farmaceuticas que las contienen y sus usos en terapia |
| CN102427810A (zh) | 2009-05-01 | 2012-04-25 | 拉夸里亚创药株式会社 | 作为trpm8拮抗剂的氨磺酰基苯甲酸衍生物 |
| EP2456310A4 (en) * | 2009-07-23 | 2013-01-23 | Univ Vanderbilt | SUBSTITUTED BENZOIMIDAZOLSULFONAMIDES AND SUBSTITUTED INDOLSULFONAMIDES AS MGLUR4 POTENTIATORS |
| PE20121153A1 (es) | 2009-09-03 | 2012-08-27 | Bristol Myers Squibb Co | Quinazolinas como inhibidores de los canales ionicos de potasio |
| JP2011057633A (ja) | 2009-09-11 | 2011-03-24 | Ube Industries Ltd | ピリジルアミノ酢酸化合物を含有する医薬 |
| WO2011030865A1 (ja) | 2009-09-11 | 2011-03-17 | 宇部興産株式会社 | 置換ベンジル化合物 |
| CN102911086B (zh) * | 2012-11-19 | 2014-04-02 | 江西国化实业有限公司 | 三氟甲磺酸酐的制备方法 |
| JP6285643B2 (ja) * | 2013-03-04 | 2018-02-28 | 積水化学工業株式会社 | リチウムイオン二次電池用負極材及びその製造方法、並びにリチウムイオン二次電池 |
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Cited By (1)
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|---|---|---|---|---|
| WO2017162868A1 (en) | 2016-03-24 | 2017-09-28 | Syngenta Participations Ag | Microbiocidal oxadiazole derivatives |
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| EP3156395A4 (en) | 2017-11-22 |
| JP6572890B2 (ja) | 2019-09-11 |
| CA2951790A1 (en) | 2015-12-17 |
| CA2951790C (en) | 2022-05-31 |
| EP3156395A1 (en) | 2017-04-19 |
| US10519112B2 (en) | 2019-12-31 |
| JPWO2015190506A1 (ja) | 2017-04-20 |
| KR102374969B1 (ko) | 2022-03-16 |
| ES2712454T3 (es) | 2019-05-13 |
| KR20170015483A (ko) | 2017-02-08 |
| EP3156395B1 (en) | 2019-01-09 |
| CN106458903B (zh) | 2021-02-05 |
| US20170121288A1 (en) | 2017-05-04 |
| CN106458903A (zh) | 2017-02-22 |
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