WO2012014953A1 - 光学活性スクシンイミド誘導体の製造方法 - Google Patents
光学活性スクシンイミド誘導体の製造方法 Download PDFInfo
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- WO2012014953A1 WO2012014953A1 PCT/JP2011/067192 JP2011067192W WO2012014953A1 WO 2012014953 A1 WO2012014953 A1 WO 2012014953A1 JP 2011067192 W JP2011067192 W JP 2011067192W WO 2012014953 A1 WO2012014953 A1 WO 2012014953A1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P17/00—Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms
- C12P17/10—Nitrogen as only ring hetero atom
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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
- C07D207/30—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 two double bonds between ring members or between ring members and non-ring members
- C07D207/34—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 two double bonds between ring members or between ring members and non-ring members 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
- C07D207/36—Oxygen or sulfur atoms
- C07D207/40—2,5-Pyrrolidine-diones
- C07D207/416—2,5-Pyrrolidine-diones 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 other ring carbon atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains three hetero rings
- C07D487/20—Spiro-condensed systems
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/16—Hydrolases (3) acting on ester bonds (3.1)
- C12N9/18—Carboxylic ester hydrolases (3.1.1)
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P41/00—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture
- C12P41/003—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture by ester formation, lactone formation or the inverse reactions
- C12P41/005—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture by ester formation, lactone formation or the inverse reactions by esterification of carboxylic acid groups in the enantiomers or the inverse reaction
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/40—Preparation of oxygen-containing organic compounds containing a carboxyl group including Peroxycarboxylic acids
- C12P7/44—Polycarboxylic acids
- C12P7/46—Dicarboxylic acids having four or less carbon atoms, e.g. fumaric acid, maleic acid
Definitions
- the present invention is (3R) -2 '-(4-bromo-2-fluorobenzyl) spiro [pyrrolidine-3,4'(1'H) represented by the following formula expected as a therapeutic agent for diabetic complications -Pyrrolo [1,2-a] pyrazine] -1 ′, 2,3 ′, 5 (2′H) -tetraone (hereinafter referred to as “Compound A”):
- the present invention relates to a method for producing an optically active succinimide derivative that is a key intermediate.
- the present invention also provides a method for producing an optically active carboxylic acid derivative that is a useful intermediate of the above compound A, a method for producing compound A using the optically active carboxylic acid derivative, and an activity for producing the optically active carboxylic acid derivative. And an enzyme-encoding DNA.
- an optical resolution method As a method for separating a racemate into an optically active form (an optical resolution method), a method using an enzyme, a method in which an optically active form is reacted to convert it into a salt and split, and a diastereomeric mixture obtained by reacting with an optically active form There are methods such as purification and separation later. Especially, since the method using an enzyme does not require an optically active substance, there is an advantage that the reaction can be carried out at a low cost. However, there is a problem that it is generally difficult to hydrolyze a specific alkoxycarbonyl such as a triester having a plurality of alkoxycarbonyls in the molecule in a regioselective or stereoselective manner.
- a specific alkoxycarbonyl such as a triester having a plurality of alkoxycarbonyls in the molecule in a regioselective or stereoselective manner.
- Patent Document 1 and Non-Patent Documents 1 and 2 describe ⁇ -lower alkyl- ⁇ -protected amino malonate diester derivatives. Has been reported to produce an optically active ⁇ -lower alkyl- ⁇ -protected amino malonate monoester derivative by asymmetric hydrolysis using a porcine liver-derived esterase. (Wherein R 4 represents benzyloxycarbonyl, tert-butoxycarbonyl or the like, and R 5 represents lower alkyl or the like)
- Patent Document 2 describes a method of producing (R) -2-amino-2-ethoxycarbonylsuccinimide (hereinafter referred to as Compound B), which is a key intermediate of Compound A, using an esterase.
- An object of the present invention is to provide a method for efficiently producing an optically active succinimide derivative which is a key intermediate of compound A. More specifically, the object of the present invention is to efficiently produce an optically active succinimide derivative that is a key intermediate of compound A, and an optically active carboxylic acid derivative from an ester derivative that is a useful intermediate of compound A. The object is to provide a method for efficient production.
- the present invention relates to the following (1) to (12).
- a step of converting to an ester derivative represented by: (B) acts on an ester derivative represented by the formula (IV) or a salt thereof with
- a step of converting to an optically active amide derivative represented by the formula: (D) A base is allowed to act on the optically active amide derivative represented by the formula (VI) or a salt thereof, and the formula (I) or the formula (VII): [In the formula (VII), R 1A represents an amino protected with a protecting group, and R 3 has the same meaning as described above.]
- a step of converting to an optically active succinimide derivative represented by (E) The protecting group on R 1A of the optically active succinimide derivative represented by the formula (VII) or a salt thereof is deprotected and converted to the optically active succinimide derivative represented by the above formula (I) or a salt thereof. Process.
- a method for producing Compound A which comprises the following steps (a) to (e): (A) A step of producing compound (I) by the production method according to (1); (B) a step of reacting the compound (I) obtained in the step (a) with 2,5-dimethoxytetrahydrofuran in the presence of an acid (for example, acetic acid and the like); (C) reacting the product obtained in the step (b) with a trichloroacetylating reagent (for example, trichloroacetyl chloride, trichloroacetyl bromide, trichloroacetic anhydride, etc.); (D) a step of reacting the product obtained in the step (c) with 4-bromo-2-fluorobenzylamine; and (e) a step of isolating the compound A obtained in the step (d). (10) The production method according to (8) or (9), wherein R 3 is ethyl.
- an optically active carboxylic acid derivative can be efficiently produced from an ester derivative that is a useful intermediate of compound A.
- compound (I) and compound A with high optical purity can be produced in high yield, which is advantageous from an industrial viewpoint.
- each group of formulas (I) to (VII) examples include linear or branched alkyl having 1 to 6 carbon atoms, and more specifically, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, pentyl, Examples include isopentyl, neopentyl, hexyl and the like.
- Halogen means fluorine, chlorine, bromine or iodine.
- the protecting group in “amino protected with a protecting group” means, for example, an amino protecting group commonly used in organic synthetic chemistry [for example, Protective Groups in Organic Synthesis, 3rd edition (Protective Groups In Organic Synthesis). , Third edition), written by TW Greene, John Wiley & Sons Inc. (1999), etc., more preferably, the action of thiol or acid, hydrogenolysis, etc. Protecting groups that are deprotected by.
- Examples of the protecting group to be deprotected by the action of thiol include 2-nitrobenzenesulfonyl, 4-nitrobenzenesulfonyl, 2,4-dinitrobenzenesulfonyl and the like.
- Examples of the protecting group to be deprotected by the action of an acid include acetyl, trityl, tert-butoxycarbonyl and the like, more preferably tert-butoxycarbonyl.
- Examples of the protecting group to be deprotected by hydrogenolysis include, for example, benzyl optionally having 1 to 3 substituents selected from the group consisting of a halogen atom, lower alkyl, lower alkoxy and nitro on the benzene ring. And oxycarbonyl, benzyl and the like. More preferably, benzyloxycarbonyl, 4-nitrobenzyloxycarbonyl, 4-chlorobenzyloxycarbonyl, 4-methylbenzyloxycarbonyl, 2-methoxybenzyloxycarbonyl, benzyl, 4-nitrobenzyl, 4-chlorobenzyl, 4- Examples include methylbenzyl, 2-methoxybenzyl, 4-methoxybenzyl and the like.
- amino protected with a protecting group may be converted to amino during the reaction.
- R 1 and R 1A in the formula include amino protected by a protecting group that can be eliminated by the action of thiol or acid, hydrogenolysis, etc., preferably benzyloxycarbonylamino, or tert -Butoxycarbonylamino is mentioned.
- R 2 and R 3 in the formula include ethyl and the like.
- a preferable combination of R 1 , R 2 , and R 3 includes, for example, a case where R 1 is benzyloxycarbonylamino and R 2 and R 3 are ethyl.
- a preferred combination of R 1A and R 3 includes a case where R 1A is benzyloxycarbonylamino and R 3 is ethyl.
- Y includes halogen, and preferably iodine, bromine, chlorine and the like. More preferably, bromine or chlorine is used.
- ammonia source examples include ammonia or an ammonia equivalent, and preferably ammonia.
- ammonia a gas or an aqueous solution can be mentioned, and an aqueous solution is preferable.
- ammonia equivalent examples include salts of ammonia and acid, preferably ammonium acetate, ammonium formate, ammonium carbonate and the like, and more preferably ammonium acetate.
- condensing agent examples include dicyclohexylcarbodiimide (DCC), 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride, N, N′-carbonyldiimidazole (CDI), N-hydroxybenzotriazole (HOBT).
- DCC dicyclohexylcarbodiimide
- CDI 1-ethyl-3- (3-dimethylaminopropyl) carbodiimide hydrochloride
- CDI N, N′-carbonyldiimidazole
- HOBT N-hydroxybenzotriazole
- Diphenyl phosphate azide DPPA
- N-hydroxysuccinimide N-hydroxyphthalimide
- benzotriazol-1-yloxy-trisdimethylaminophosphonium hexafluorophosphate BOP
- 4- (4,6-dimethoxy-1,3, 5-triazin-2-yl) -4-methylmorpholinium chloride DTMM
- O- (benzotriazol-1-yl) -N, N, N ', N'-tetramethyluronium hexafluorophosphate HBTU
- 2-chloro-1-methylpyridinium iodide 2-chloro-1-methylpyridinium iodide and the like.
- Examples of the activation reagent include methyl chloroformate, ethyl chloroformate, isopropyl chloroformate, isobutyl chloroformate, pivaloyl chloride, phosgene, triphosgene, phosphorus oxychloride, phosphorus pentachloride, thionyl chloride, and preferably chloroformate.
- Examples include isobutyl acid.
- Examples of the salt of compound (I), (IV), (V), (VI), or (VII) include acid addition salts, metal salts, ammonium salts, organic amine addition salts, amino acid addition salts, and the like.
- Examples of the acid addition salt include inorganic acid salts such as hydrochloride, hydrobromide, nitrate, sulfate, and phosphate, acetate, oxalate, maleate, fumarate, citrate, Examples include organic acid salts such as benzoate and methanesulfonate.
- Examples of the metal salt include alkali metal salts such as sodium salt and potassium salt, alkaline earth metal salts such as magnesium salt and calcium salt, aluminum salt, zinc salt and the like.
- ammonium salt examples include salts such as ammonium and tetramethylammonium.
- organic amine addition salt examples include addition salts such as morpholine and piperidine.
- amino acid addition salts include addition salts of lysine, glycine, phenylalanine, aspartic acid, glutamic acid and the like.
- the production method of the present invention uses an esterase derived from a non-animal, preferably from a microorganism, more preferably from a microorganism belonging to the genus Bacillus, particularly preferably from Bacillus thuringiensis as an enzyme in “Step 2” in the following steps. It is characterized by.
- reaction conditions such as reaction temperature, reagent type, reagent amount, and reaction time are mentioned for illustrative purposes and should be interpreted in a limited manner in any sense. Must not.
- R 1 represents amino or amino protected with a protecting group
- R 1A represents amino protected with a protecting group
- R 2 and R 3 are the same or different and represent lower alkyl
- Any solvent may be used as long as it does not participate in the reaction, but cyclohexane, benzene, toluene, xylene, diethyl ether, diisopropyl ether, tert-butyl methyl ether, tetrahydrofuran (THF), dioxane, pyridine, methanol, Examples include ethanol, isopropyl alcohol, dimethylformamide (DMF), dimethyl sulfoxide (DMSO), acetonitrile, and the like, preferably DMF. These can be used alone or as a mixture.
- the base examples include organic bases or inorganic bases, preferably inorganic bases, and more preferably sodium hydride, sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate. , Cesium carbonate, sodium methoxide, sodium ethoxide, potassium tert-butoxide and the like, more preferably sodium hydride, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, cesium carbonate and the like, Most preferably, sodium hydride or potassium carbonate is used.
- alkali halide examples include alkali bromide and alkali iodide, preferably alkali iodide, more preferably lithium iodide, sodium iodide, potassium iodide, or cesium iodide. Most preferably, potassium iodide is used.
- alkali bromide and alkali iodide preferably alkali iodide, more preferably lithium iodide, sodium iodide, potassium iodide, or cesium iodide. Most preferably, potassium iodide is used.
- compound (III) examples include ethyl 2-chloroacetate and ethyl 2-bromoacetate. Compound (II) and compound (III) can also be obtained as commercial products.
- the substrate concentration is 0.1% to 50%, preferably 1% to 30%, in water or a mixed solvent of water and a solvent, at a temperature between 0-60 ° C., preferably 10-40 ° C.
- the reaction pH is 3 to 10, preferably pH 4 to 9, and 1 to 100,000 times, preferably 1 to 10,000 times the amount of the enzyme is allowed to act on the substrate for 1 to 200 hours, preferably 1 to 200 hours. Can be obtained by reacting for 5 to 150 hours.
- the reaction can be performed by adding a buffer solution or a metal salt.
- Solvents include cyclohexane, benzene, toluene, xylene, diethyl ether, diisopropyl ether, tert-butyl methyl ether, THF, dioxane, methyl acetate, ethyl acetate, butyl acetate, methyl isobutyl ketone, acetone, dichloromethane, chloroform, dichloroethane, four Examples include carbon chloride, methanol, ethanol, isopropyl alcohol, tert-butyl alcohol, DMF, DMSO, acetonitrile, and the like, and preferably ethanol or acetonitrile. When used in a mixed solvent, water and the solvent may form either a homogeneous system or a heterogeneous system, but it is preferable to form a homogeneous system.
- Examples of the enzyme include esterases derived from non-animals, preferably from microorganisms.
- a microorganism belonging to the genus Bacillus is preferable.
- microorganisms belonging to the genus Bacillus include, for example, Bacillus thuringiensis, Bacillus subtilis, Bacillus anthracis, Bacillus cereus, Bacillus ⁇ ⁇ coulans (Bacillus coulans).
- Bacillus licheniformis Bacillus megaterium, Bacillus earearothermophilus, Bacillus amyloliquefaciens, Bacillus amyloliquefaciens, Bacillus pumilus
- esterase derived from Bacillus thuringiensis is preferable, but is not limited to the specific esterase described above.
- an esterase comprising the amino acid sequence represented by SEQ ID NO: 2
- the method of the present invention comprises, in addition to the above-mentioned specific esterase, an amino acid sequence having 95% or more, preferably 97% or more, more preferably 99% or more identity with the amino acid sequence
- a protein having an esterase action can also be used. Further, it comprises a protein encoded by a DNA comprising the base sequence represented by SEQ ID NO: 1, or a base sequence having 95% or more, preferably 97% or more, more preferably 99% or more identity with the base sequence. Examples include a protein encoded by DNA and having the same esterase action as the esterase described in SEQ ID NO: 2.
- an esterase derived from a microorganism as an esterase
- the microorganism culture, or the separated microorganism cells or microorganism culture is subjected to appropriate treatment.
- a treated product of the microbial cells or a treated product of the culture may be used.
- an embodiment using a cell body, a culture, or a treated product of a cell or culture containing an esterase is also encompassed by a use embodiment of an esterase derived from a microorganism.
- treated cells or cultures include, for example, lyophilized products of cells or cultures, treated cells obtained by treatment with toluene, acetone, and the like, as well as known immobilization methods.
- immobilization methods examples thereof include an immobilized product immobilized by a comprehensive method, a carrier binding method, a crosslinking method, or the like.
- a comprehensive method a method using a natural polymer such as carrageenan or alginic acid or a synthetic polymer using a monomer or a prepolymer, a method for adsorbing to chitosan or the like as a carrier binding method, a method using glutaraldehyde or the like as a crosslinking method Is mentioned.
- a crushed product or an extract of microbial cells may be used as the processed microbial product.
- the disrupted cells can be obtained by a known disruption method such as an ultrasonic disruption method, a French press disruption method, a glass bead disruption method, or a dynomill disruption method.
- the microbial cell extract can be obtained by removing the microbial cells from the crushed microbial cells by centrifugation or the like.
- the bacterial cell extract can be used as a crude enzyme solution.
- the crude enzyme solution can be used, for example, a salting-out method using ammonium sulfate precipitation, a concentration method using an ultrafiltration membrane, ion exchange chromatography, hydrophobic interaction chromatography, or gel filtration. It can also be purified and used as a purified enzyme by a combination such as chromatographic separation.
- the term cell-treated product includes the crushed cell material, extract, crude enzyme solution, purified enzyme and the like as described above.
- the immobilized cell body or immobilized enzyme By immobilizing a crushed cell product or extract (crude enzyme or purified enzyme) on a carrier as a treated cell product, the immobilized cell body or immobilized enzyme can be used repeatedly.
- the target product When used as an immobilized microbial cell or an immobilized enzyme, the target product can be produced by a continuous method. For example, they can be packed in a column and used as a bioreactor. Any carrier can be used as long as it is generally used.
- cellulose agarose, dextran, ⁇ -carrageenan, alginic acid, gelatin, natural polymers such as cellulose acetate, natural polymers such as gluten, activated carbon, glass, clay, kaolinite, alumina, silica gel, bentonite, hydroxyapatite, calcium phosphate, etc.
- synthetic adsorbents such as polyacrylamide, polyvinyl acetate, polypropylene glycol, and urethane.
- the immobilization method for example, a cross-linking method, a physical adsorption method, or a comprehensive method can be used.
- Microorganism culture conditions are not particularly limited, and can be performed by a commonly used method. Any medium can be used as long as it is usually used, and any medium can be used as long as it is capable of growing microorganisms and appropriately contains an assimitable carbon source, nitrogen source, inorganic substance, and necessary growth promoting substances. Can be used. As the medium, either a synthetic medium or a natural medium can be used.
- Any carbon source can be used as long as it is a carbon compound that can be assimilated and grown by cells.
- Nitrogen sources include ammonium salts of inorganic acids such as hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid, ammonium salts of organic acids such as fumaric acid and citric acid, nitrates such as sodium nitrate and potassium nitrate, yeast extract, peptone, meat extract, Organic nitrogen sources such as corn steep liquor, processed soybean products and urea can be used alone or in combination.
- inorganic salts sulfates such as potassium, sodium, calcium, magnesium, manganese and iron, hydrochlorides, carbonates, nitrates, phosphates and the like can be used alone or in combination.
- Cultivation can be performed either under aeration conditions using shake culture or jar fermenter, or under anaerobic conditions, depending on the type of microorganism.
- the pH of the medium is preferably in the range of 3 to 10
- the temperature is preferably in the range of 10 to 50 ° C.
- the culture time is preferably 10 to 500 hours.
- the culture conditions are appropriately selected according to the type of microorganism.
- the present invention is not limited to the above specific conditions.
- DNA comprising the base sequence specified by SEQ ID NO: 1 or consisting of a base sequence having 95% or more, preferably 97% or more, more preferably 99% or more identity with the base sequence
- a recombinant vector containing DNA that encodes a protein having the same esterase activity as the esterase described in SEQ ID NO: 2 is prepared, and this vector is introduced into an appropriate host cell to prepare a transformant.
- a protein encoded by the DNA can be obtained and used as an esterase.
- the transformant is a microorganism, as described above, in addition to the microbial cell, a microbial culture or a microbial cell product obtained by subjecting the isolated microbial cell to appropriate treatment It may be used as such.
- hybridize is a step in which DNA hybridizes to DNA having a specific base sequence or a part of the DNA. Accordingly, the DNA having the specific base sequence or a part of the base sequence of the DNA is useful as a probe for Northern or Southern blot analysis, or is a length of DNA that can be used as an oligonucleotide primer for PCR analysis. May be.
- DNA used as a probe include DNA of at least 100 bases, preferably 200 bases or more, more preferably 500 bases or more, but may be DNA of at least 10 bases, preferably 15 bases or more. .
- the above stringent conditions include, for example, a filter on which DNA is immobilized and a probe DNA, 50% formamide, 5 ⁇ SSC (750 mM sodium chloride, 75 mM sodium citrate), 50 mM sodium phosphate (pH 7.6). ), Incubated in a solution containing 5 ⁇ Denhardt's solution, 10% dextran sulfate, and 20 ⁇ g / l denatured salmon sperm DNA overnight at 42 ° C., for example in a 0.2 ⁇ SSC solution at about 65 ° C. Conditions for washing the filter can be raised, but lower stringent conditions can also be used.
- Stringent conditions can be changed by adjusting the formamide concentration (lower stringent concentration reduces the stringency), and changing the salt concentration and temperature conditions.
- low stringent conditions for example, 6 ⁇ SSCE (20 ⁇ SSCE is 3 mol / l sodium chloride, 0.2 mol / l sodium dihydrogen phosphate, 0.02 mol / l EDTA, pH 7.4), 0.5% Incubate overnight at 37 ° C in a solution containing SDS, 30% formamide, 100 ⁇ g / l denatured salmon sperm DNA, then wash with 50 ° C 1x SSC, 0.1% SDS solution. I can give you.
- examples of lower stringent conditions include conditions in which hybridization is performed using a solution having a high salt concentration (for example, 5 ⁇ SSC) under the above-described low stringency conditions and then washed.
- the various conditions described above can also be set by adding or changing a blocking reagent used to suppress the background of the hybridization experiment.
- the addition of the blocking reagent described above may be accompanied by a change in hybridization conditions in order to adapt the conditions.
- the DNA capable of hybridizing under the above stringent conditions is 95% or more, preferably 97% or more, with the base sequence represented by SEQ ID NO: 1, when calculated using a program such as BLAST and FASTA. More preferably, DNA comprising a nucleotide sequence having 99% or more identity can be mentioned.
- the DNA that hybridizes with the above-described DNA under stringent conditions is a DNA that encodes a protein having an esterase action similar to that of the esterase described in SEQ ID NO: 2. And culturing a microorganism obtained by introducing the recombinant DNA into a main cell, preparing a crude enzyme extract from the obtained culture and reacting with compound (IV), This can be confirmed by the presence or absence of generation.
- DNA encoding a protein consisting of a sequence and having the same action as an esterase having the amino acid sequence specified in SEQ ID NO: 2 is based on the information on the amino acid sequence described in SEQ ID NO: 2, based on chemical synthesis and genetic engineering. It can be made by any method known to those skilled in the art such as techniques or mutagenesis.
- a DNA having a base sequence encoding the amino acid sequence described in SEQ ID NO: 2 in the sequence listing for example, a DNA having a base sequence described in SEQ ID NO: 1, to contact with a drug that becomes a mutagen Desired DNA can be prepared by a method of irradiating ultraviolet rays, a genetic engineering technique, or the like.
- Site-directed mutagenesis which is one of genetic engineering techniques, is a technique that can introduce a specific mutation at a specific position. For example, Molecular Cloning 2nd edition, “Current Protocols in Molecular Biology” ”,“ John Wiley ”&“ Sons ”(1987-1997).
- an esterase comprising an amino acid sequence having 95% or more, preferably 97% or more, more preferably 99% or more identity with the amino acid sequence shown in SEQ ID NO: 2, and having the amino acid sequence specified in SEQ ID NO: 2
- a protein having the same action as that described above is obtained by using the amino acid sequence shown in SEQ ID NO: 2 in a query and searching a database of various proteins to obtain an amino acid sequence having 95% or more identity with the amino acid sequence.
- An enzyme having the amino acid sequence thus prepared can be prepared by expressing the enzyme using recombinant DNA and confirming its activity as described above.
- the DNA can be obtained by preparing appropriate probes and primers based on the amino acid sequence information described in SEQ ID NO: 2 in the sequence listing and screening microorganism chromosomes using them.
- a desired DNA can be isolated by PCR using a chromosomal DNA library or cDNA library derived from various microorganisms as a template.
- Preparation of the above-mentioned probe or primer, construction of a cDNA library, Techniques such as screening and cloning of the target DNA are well known and commonly used by those skilled in the art, and can be carried out, for example, according to the methods described in Current Protocols in Molecular Biology and the like described above.
- DNA comprising the nucleotide sequence specified by SEQ ID NO: 1, or DNA comprising a nucleotide sequence having 95% or more, preferably 97% or more, more preferably 99% or more identity with the nucleotide sequence DNA encoding a protein having an esterase action similar to the esterase described in 2 can be used by inserting it into an appropriate vector.
- the type of vector used in the present invention is not particularly limited.
- a vector such as a plasmid that replicates autonomously, a vector that is integrated into the host cell genome and replicated together with the chromosome when introduced into the host cell, and the like are used. can do.
- an expression vector is preferably used.
- it is desirable that the DNA is functionally linked to a promoter necessary for transcription.
- a promoter is a DNA sequence that exhibits transcriptional activity in a host cell, and can be appropriately selected depending on the type of host.
- promoters operable in bacterial cells include the Bacillus stearothermophilus maltogenic amylase gene, the Bacillus licheniformis alpha-amylase gene, and the Bacillus amylo gene.
- promoters that can operate in insect cells include polyhedrin promoter, P10 promoter, autographa calicornica polyhedrosis basic protein promoter, baculovirus immediate early gene 1 promoter, or baculovirus 39K delayed early gene.
- promoters operable in yeast host cells include promoters derived from yeast glycolytic genes, alcohol dehydrogenase gene promoters, TPI1 promoters, ADH2-4c promoters, and the like.
- promoters that can operate in filamentous fungal cells include the ADH3 promoter or the tpiA promoter.
- the recombinant vector may further contain a selection marker.
- selectable markers include drug resistance genes such as ampicillin, kanamycin, tetracycline, chloramphenicol, neomycin, or hygromycin.
- the type of host cell for introducing the recombinant vector is not particularly limited as long as the above DNA can be expressed.
- Examples include bacteria, yeasts, fungi, and higher eukaryotic cells, but bacteria and yeasts are preferred.
- the bacterium include Gram-positive bacteria belonging to the genus Bacillus, Streptomyces, etc., or Gram-negative bacteria such as Escherichia coli, with E. coli being preferred. Transformation of these bacteria can be performed by an appropriate means depending on the type of cell. By culturing the transformant under appropriate conditions, the esterase can be expressed from the introduced DNA, and then the esterase can be isolated and purified by an appropriate means and used in the method of the present invention. .
- the microbial cell itself or a processed microbial cell product can be used as a transformant.
- the above-mentioned DNA can be introduced into a plasmid to prepare a recombinant vector, the recombinant vector can be introduced into E. coli and transformed, and then the desired esterase can be obtained by culturing E. coli.
- the mode of use of the converter is not limited to this specific mode.
- Examples of the buffer solution used for the reaction in Step 2 include a phosphate buffer solution, an acetate buffer solution, a citrate buffer solution, a borate buffer solution, and a Tris buffer solution, and preferably a phosphate buffer solution.
- the concentration of the buffer is 0.1 mmol / L to 1 mol / L, preferably 1 mmol / L to 100 mmol / L.
- Examples of the metal salt include NaCl, FeCl 3 , KCl, CaCl 2 , MgSO 4 , MnSO 4 , ZnCl 2 , CoCl 2 and the like.
- the concentration of the metal salt is preferably 0.01 to 10%.
- the optically active carboxylic acid derivative of the formula (V) obtained by the above reaction is filtered to remove insolubles, and an acid is added to adjust the pH to about 1 to 3, preferably about pH 2 Then, the reaction product can be separated by extracting with a suitable solvent.
- any solvent can be used as long as it does not participate in the reaction.
- cyclohexane, benzene, toluene, xylene, diethyl ether, diisopropyl ether, tert-butylmethyl examples include ether, THF, dioxane, methyl acetate, ethyl acetate, butyl acetate, methyl isobutyl ketone, acetone, pyridine, DMF, DMSO, dichloromethane, chloroform, acetonitrile, and the like, preferably THF.
- These solvents can be used alone or as an arbitrary mixture.
- a solvent such as water, methanol, ethanol, isopropyl alcohol or the like can be used in addition to the above solvent. Can be used as a mixture. Further, in any of the cases (A) to (C), the reaction can be carried out by adding 1 to 30 equivalents of a base.
- Examples of the base include organic bases and inorganic bases, preferably organic bases.
- Examples of the organic base include 1,8-diazabicyclo [5,4,0] -7-undecene (DBU), triethylamine, 4-dimethylaminopyridine, N, N-dimethylaniline, pyridine, N-methylmorpholine, and ethyldiisopropyl.
- DBU 1,8-diazabicyclo [5,4,0] -7-undecene
- triethylamine 4-dimethylaminopyridine, N, N-dimethylaniline, pyridine, N-methylmorpholine, and ethyldiisopropyl.
- An amine etc. are mentioned, Preferably a triethylamine is mentioned.
- Examples of the inorganic base include sodium hydride, sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, cesium carbonate, sodium methoxide, sodium ethoxide, potassium tert-butoxide and the like. Can be mentioned.
- the condensing agent the same condensing agent as described above can be used.
- the same activation reagent and ammonia source as described above can be used.
- Examples of the base include sodium hydride, sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, cesium carbonate, sodium methoxide, sodium ethoxide, potassium tert-butoxide and the like.
- sodium ethoxide is used.
- R 1A of compound (VII) is an amino protected with a protecting group that is deprotected by hydrogenolysis, 1 in a solvent at a temperature of ⁇ 50 ° C. to 150 ° C., preferably 20 ° C. to 100 ° C.
- Coexistence of hydrogen or a hydrogen donor by adding 1 to 50% by weight, preferably 1 to 10% by weight of a metal catalyst to the substrate under a pressure of ⁇ 10 atm, more preferably 1 to 5 atm
- the compound (I) can be obtained by reacting for 5 minutes to 72 hours.
- solvent examples include acetic acid, methyl acetate, ethyl acetate, butyl acetate, diethyl ether, diisopropyl ether, tert-butyl methyl ether, THF, dioxane, water, methanol, ethanol, isopropyl alcohol, DMF, and the like, preferably ethanol. Can be mentioned. These solvents can be used alone or in any mixture.
- Metal catalysts include platinum (IV) oxide, platinum-carbon, palladium hydroxide (II), palladium hydroxide (II) -carbon, palladium-carbon, palladium-alumina, ruthenium-carbon, rhodium-carbon, rhodium-alumina. , Wilkinson's catalyst, Raney nickel and the like, preferably palladium-carbon.
- the palladium content in palladium-carbon is not particularly limited, but preferably 5 to 10%.
- the hydrogen donor include ammonium formate, cyclohexene, cyclohexa-1,3-diene, cyclohexa-1,4-diene and the like.
- R 1A of compound (VII) is amino protected with a protecting group that can be deprotected by the action of an acid, it is -50 ° C to 150 ° C, preferably 20 ° C to 100 ° C, without solvent or in a solvent.
- Compound (I) can be obtained by reacting an acid at a temperature.
- Solvents include cyclohexane, benzene, toluene, xylene, diethyl ether, diisopropyl ether, tert-butyl methyl ether, THF, dioxane, methyl acetate, ethyl acetate, butyl acetate, water, isopropyl alcohol, methanol, ethanol, DMF, dichloromethane, Chloroform etc. are mentioned, The solvent of these can be used individually or as arbitrary mixtures.
- acids include inorganic acids and organic acids.
- inorganic acids include hydrochloric acid, sulfuric acid, and nitric acid.
- organic acids include acetic acid, trifluoromethanesulfonic acid, trifluoroacetic acid, and p-toluenesulfonic acid. Etc. Preferably, trifluoroacetic acid is used.
- R 1A of compound (VII) is amino protected with a protecting group that is deprotected by the action of thiol, 1 in a solvent at a temperature of ⁇ 50 ° C. to 150 ° C., preferably 20 ° C. to 100 ° C.
- Compound (I) can be obtained by allowing an equivalent to a large excess of thiol to act in the presence of 1 equivalent to a large excess of base for 5 minutes to 72 hours.
- solvent examples include cyclohexane, benzene, toluene, xylene, pyridine, diethyl ether, THF, dioxane, methyl acetate, ethyl acetate, butyl acetate, water, acetone, isopropyl alcohol, methanol, ethanol, DMF, dichloromethane, chloroform, and the like. These solvents can be used alone or as an arbitrary mixture.
- Any thiol can be used as long as it is a compound having a sulfhydryl group.
- Preferred examples include a thiophenol optionally having a substituent and a lower alkylthiol optionally having a substituent. More preferably, thiophenol, methanethiol, ethanethiol, 1-dodecanethiol, etc. are mentioned.
- Examples of the base include organic bases and inorganic bases.
- Examples of the organic base include DBU, triethylamine, 4-dimethylaminopyridine, N, N-dimethylaniline, pyridine, N-methylmorpholine, ethyldiisopropylamine, and the inorganic base includes, for example, sodium hydride, water
- Examples include sodium oxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, sodium methoxide, sodium ethoxide, potassium tert-butoxide, and the like, preferably potassium carbonate or triethylamine.
- step (b) for example, a mixture of compound B, about 1.5 equivalents of 2,5-dimethoxytetrahydrofuran and excess acetic acid is stirred at about 70 ° C. for about 1.5 hours.
- a crude reaction product is isolated according to a conventional method and can be used in the next step.
- step (c) for example, a mixture of the product obtained in step (b), about 3 equivalents of trichloroacetyl chloride, and an appropriate amount of chloroform is heated to reflux for about 16 hours.
- Other inert solvents for example, dichloromethane, THF, etc.
- a crude reaction product is isolated according to a conventional method and can be used in the next step.
- step (d) for example, the product obtained in step (c), about 1.2 equivalents of 4-bromo-2-fluorobenzylamine hydrochloride, and about 2.5 equivalents of triethylamine in an appropriate amount of dry DMF solvent, Stir at room temperature for about 16 hours.
- a crude reaction product (compound A) can be isolated according to a conventional method and used in the next step.
- the compound A obtained in the step (d) is recrystallized from an appropriate amount of a mixed solvent of ethyl acetate and hexane.
- alcohols such as ethanol can also be used.
- optical purity analysis was performed under the following conditions using HPLC.
- CHIRALCEL® OJ-RH® ⁇ 4.6 ⁇ 150 mm
- the detection wavelength was 254 nm.
- the intermediates and target compounds in each of the above production methods are isolated and purified by separation and purification methods commonly used in organic synthetic chemistry, such as filtration, extraction, washing, drying, concentration, recrystallization, and various chromatography. be able to.
- the intermediate can be subjected to the next reaction without any particular purification.
- compound (I), (IV), (V), (VI), or (VII) When it is desired to obtain a salt of compound (I), (IV), (V), (VI), or (VII), compound (I), (IV), (V), (VI), or (VII) When it is obtained in the form of a salt, it may be purified as it is, and when it is obtained in a free form, the compound (I), (IV), (V), (VI) or (VII) is added to an appropriate solvent. It may be dissolved or suspended in the solution, and then isolated or purified by adding an acid or a base. In addition, compound (I), (IV), (V), (VI), or (VII) and salts thereof may exist in the form of adducts with water or various solvents. Products are also encompassed by the present invention.
- the cells were cultured aerobically at 16 ° C for 16 hours. From the obtained culture broth, wet cells were collected by centrifugation (12,000 ⁇ g, 10 minutes) and suspended in 0.01 M Tris-HCl buffer (pH 8.0).
- the suspension was crushed with an ultrasonic homogenizer (Nippon Seiki US-300T) under ice cooling, and then separated into a supernatant and a residue by centrifugation (12,000 ⁇ g, 10 minutes). Under ice-cooling, ammonium sulfate was added to the supernatant to a 20% saturation concentration, and after stirring, centrifuged (12,000 ⁇ g, 10 minutes) to remove the supernatant. The precipitate was suspended in 0.01 M Tris-HCl buffer (pH 8.0) containing 1 mM Dithiothreitol (DTT) and dialyzed against the same buffer. DEAE Sepharose Fast Flow (manufactured by GE Healthcare) was added to this solution, mixed and then filtered to recover the active solution.
- an ultrasonic homogenizer Nippon Seiki US-300T
- Ammonium sulfate was added to the supernatant to a 20% saturation concentration, and after stirring, centrifuged (12,000 ⁇
- Dialyze the active fraction remove CHAPS, add polyoxyethylene lauryl ether (Brij 35) to a final concentration of 0.05%, 0.01 M Tris containing 0.05% Brij 35, 1 mM1DTT, 0.3M sodium chloride. It is applied to Phenyl Sepharose High Performance (produced by GE Healthcare Co.) equilibrated with hydrochloric acid buffer (pH 8.0) (hereinafter Buffer B), washed with buffer B, and a 0.3 to 0 M sodium chloride gradient To elute the protein. The active fraction is dialyzed with buffer A, concentrated by ultrafiltration, and then applied to Mono Q (equipped with GE Healthcare Co., Ltd.) equilibrated with buffer A.
- Buffer B hydrochloric acid buffer
- Activity measurement was performed as follows. Add 0.1 mL of purified solution to 0.1 mL of the enzyme-containing solution, 0.05 mL of 1 M phosphate buffer (pH7), 0.05 mL of acetonitrile containing 1% diethyl-2-benzyloxycarbonylamino-2-ethoxycarbonyl succinate. After mixing, the mixture was shaken at 30 ° C. for 4 hours.
- the base sequence of the insert DNA was decoded by the primer walking method using pBTEST7 as a template.
- ABI ⁇ ⁇ PRISM 310NT Genetic Analyzer (Applied Biosystems Japan Co., Ltd.) and BigDye Terminator v3.1 Cycle Sequencing Kit (Applied Biosystems Japan Co., Ltd.) were used for decoding the base sequence.
- the gene consisted of 1380 bp (SEQ ID NO: 1).
- the gene shown in SEQ ID NO: 1 encoded an enzyme consisting of 460 amino acid residues (SEQ ID NO: 2).
- the protein whose esterase activity has been confirmed in the above (b) is the 40 amino acids on the N-terminal side in the amino acid sequence shown in SEQ ID NO: 2. Was found to be a deleted protein.
- the PCR product was digested with Sph I (Toyobo Co., Ltd.) and Bgl II (Toyobo Co., Ltd.) to construct a plasmid inserted into the Sph I and Bgl II sites of pQE-70 (Qiagen Co., Ltd.) (pBTEST12) .
- pBTEST12 was introduced into Escherichia coli JM109 using Competent high JM109 (Toyobo Co., Ltd.) according to the attached instructions to prepare Escherichia coli JM109 / pBTEST12.
- PCR was performed using pODTEST12 as a template, 5'-GTACAAAGCATGCAAAAGAAACCAGTCTCTTTAACGGCGAGCG (Hokkaido System Science) and 5'-CTTTTGTTGTAGATCTTTTCTTTGTCGC ATTGACCCA (Hokkaido System Science) using KOD-plus-.
- the PCR product was digested with Sph I and Bgl II to construct a plasmid inserted into the Sph I and Bgl II sites of pQE-70 (pBTEST38).
- pBTEST38 was introduced into Escherichia coli JM109 using Competent high JM109 according to the attached instructions to prepare Escherichia coli JM109 / pBTEST38.
- Escherichia coli JM109 / pBTEST38 was inoculated into 5 ⁇ mL LB liquid medium containing 100 ⁇ mg / L ampicillin sodium, and cultured with shaking at 30 ° C. and 200 ⁇ rpm for 19 hours.
- This culture solution was inoculated into 100 ⁇ mL LB liquid medium containing 0.1 ⁇ mM isopropyl- ⁇ -thiogalactopyranoside and cultured with shaking at 25 ° C. and 200 rpm for 16 hours.
- 3 L of this culture solution was prepared and centrifuged at 12,000 cm ⁇ g, 4 ° C. for 10 minutes to obtain bacterial cells. Suspend the cells in a small amount of 0.1 M phosphate buffer (pH 7.0), add 15 mL of acetonitrile solution containing 35% diethyl-2-benzyloxycarbonylamino-2-ethoxycarbonyl succinate, and add a total amount. Purified water was added to 150 mL. The solution was maintained at 25 ° C. for 18 hours with stirring. A 28% sodium hydroxide solution was added in a timely manner so that the pH of the reaction solution was maintained at 7.0.
- 0.1 M phosphate buffer pH 7.0
- Example 6 Preparation of (R) -2-amino-2-ethoxycarbonylsuccinimide 80 mg of (R) -2-benzyloxycarbonylamino-2-ethoxycarbonylsuccinimide was dissolved in 10 mL of ethanol and 5% palladium-carbon 4 mg was added, and catalytic hydrogenation was performed at room temperature under a hydrogen atmosphere. After removing the catalyst by filtration, the filtrate was concentrated under reduced pressure. The residue was recrystallized from ethanol to obtain 43 mg (yield 93%) of the title compound as colorless crystals. The optical rotation was [ ⁇ ] D 24 -35.9 ° (c 0.22, ethanol). The optical purity was 99.9% ee or higher.
- an optically active carboxylic acid having high optical purity from the ester derivative that is the useful intermediate A method for producing the derivative with high yield is provided.
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Abstract
Description
化合物Bから化合物Aを製造する方法は特許文献3及び非特許文献3等に記載されており、特許文献4の参考例1には、ジエチル=2-ベンジルオキシカルボニルアミノマロナートと2-ブロモ酢酸tert-ブチルを反応させる4-tert-ブチル=1-エチル=2-ベンジルオキシカルボニルアミノ-2-エトキシカルボニルスクシナートの製造方法が記載されている。
より具体的には、本発明の課題は、化合物Aの鍵中間体である光学活性スクシンイミド誘導体を効率的に製造する方法、及び化合物Aの有用中間体であるエステル誘導体から光学活性カルボン酸誘導体を効率的に製造する方法を提供することにある。
(1)式(I):
で表される光学活性スクシンイミド誘導体又はその塩の製造方法であって、以下の工程(A)~(D)、さらに必要により工程 (E)を含む製造方法:
(A) 式(II):
で表されるハロゲン化酢酸エステル誘導体を塩基の存在下で反応させて式(IV):
で表されるエステル誘導体又はその塩に変換する工程、
(B)式(IV)で表されるエステル誘導体又はその塩に非動物由来の酵素、該酵素を生産する細胞、該細胞の培養物、又は該細胞若しくは該細胞の培養物の処理物を作用させ、式(V):
で表される光学活性カルボン酸誘導体又はその塩に変換する工程、
(C)式(V)で表される光学活性カルボン酸誘導体又はその塩を縮合剤の存在下、アンモニア源と反応させるか、又は活性化試薬と反応させた後に、さらにアンモニア源と反応させて、式(VI):
で表される光学活性アミド誘導体又はその塩に変換する工程、
(D)式(VI)で表される光学活性アミド誘導体又はその塩に塩基を作用させて、式(I)又は式(VII):
で表される光学活性スクシンイミド誘導体又はその塩に変換する工程、
(E)式(VII)で表される光学活性スクシンイミド誘導体又はその塩のR1A上の保護基を脱保護して、上記式(I)で表される光学活性スクシンイミド誘導体又はその塩に変換する工程。
(3)酵素が微生物由来エステラーゼである(1)又は(2)に記載の製造方法。
(4)酵素がバチルス属に属する微生物由来エステラーゼである(1)又は(2)に記載の製造方法。
(5)酵素がバチルス・チューリンゲンシス(Bacillus thuringiensis)由来のエステラーゼである(1)又は(2)に記載の製造方法。
(a)配列番号2に記載のアミノ酸配列により特定される蛋白質
(b)配列番号2に記載のアミノ酸配列において1つ又は複数のアミノ酸が置換及び/又は欠失及び/又は付加されたアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(c)配列番号2に記載のアミノ酸配列と95%以上の同一性を有するアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(d)配列番号2に記載のアミノ酸配列において、N末端から1~40個のアミノ酸残基が欠失したアミノ酸配列を有する蛋白質
(8)(1)に記載の製造方法により、式(I)で表される光学活性スクシンイミド誘導体{以下、化合物(I)と称する}を製造する工程、及び該工程で得られた化合物(I)を化合物Aに変換する工程を含む化合物Aの製造方法。
(9)化合物Aの製造方法であって、下記(a)~(e)の工程を含む製造方法:
(a)化合物(I)を(1)に記載の製造方法で製造する工程;
(b)前記工程(a)で得られた化合物(I)を酸(例えば、酢酸など)の存在下に2,5-ジメトキシテトラヒドロフランと反応させる工程;
(c)前記工程(b)で得られた生成物をトリクロロアセチル化試薬(例えば、トリクロロアセチルクロリド、トリクロロアセチルブロミド、無水トリクロロ酢酸など)と反応させる工程;
(d)前記工程(c)で得られた生成物を4-ブロモ-2-フルオロベンジルアミンと反応させる工程;及び
(e)前記工程(d)で得られた化合物Aを単離する工程。
(10)R3がエチルである(8)又は(9)に記載の製造方法。
(a)配列番号2に記載のアミノ酸配列により特定される蛋白質
(b)配列番号2に記載のアミノ酸配列において1つ又は複数のアミノ酸が置換及び/又は欠失及び/又は付加されたアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(c)配列番号2に記載のアミノ酸配列と95%以上の同一性を有するアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(d)配列番号2に記載のアミノ酸配列において、N末端から1~40個のアミノ酸残基が欠失したアミノ酸配列を有する蛋白質
(a)配列番号1に記載の塩基配列により特定されるDNA
(b)請求項11に記載の蛋白質をコードするDNA
(c)配列番号1に記載の塩基配列において1つ又は複数の塩基が置換及び/又は欠失及び/又は付加された塩基配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質をコードするDNA
(d)配列番号1に記載の塩基配列と相補的な配列からなるDNAとストリンジェントな条件下でハイブリダイズする塩基配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質をコードするDNA
式(I)~(VII)の各基の定義において、
低級アルキルとしては、例えば直鎖又は分岐状の炭素数1~6のアルキルが挙げられ、より具体的にはメチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、sec-ブチル、tert-ブチル、ペンチル、イソペンチル、ネオペンチル、ヘキシル等が挙げられる。ハロゲンは、フッ素、塩素、臭素又はヨウ素を意味する。
酸の作用により脱保護される保護基としては、例えば、アセチル、トリチル、tert-ブトキシカルボニル等が挙げられ、より好ましくはtert-ブトキシカルボニルが挙げられる。
式中のR1及びR1Aとしては、例えば、チオール若しくは酸の作用、又は加水素分解等により脱離しうる保護基で保護されたアミノ等が挙げられ、好ましくは、ベンジルオキシカルボニルアミノ、又はtert-ブトキシカルボニルアミノが挙げられる。
式中のR2及びR3としては、例えば、エチル等が挙げられる。
Yとしては、ハロゲンが挙げられ、好ましくはヨウ素、臭素、塩素等が挙げられる。より好ましくは、臭素、又は塩素が挙げられる。
アンモニア等価体としては、例えば、アンモニアと酸との塩が挙げられ、好ましくは、酢酸アンモニウム、ギ酸アンモニウム、炭酸アンモニウム等が挙げられ、さらに好ましくは酢酸アンモニウムが挙げられる。
化合物(II)に対し、溶媒中、-50℃と150℃の間の温度で、1~30当量の塩基の存在下、1当量~大過剰量の化合物(III)を、5分間~72時間反応させることにより化合物(IV)を得ることができる。また、ハロゲン化アルカリを添加して反応を行ってもよい。
溶媒は、反応に関与しないものであればいずれも使用可能であるが、シクロヘキサン、ベンゼン、トルエン、キシレン、ジエチルエーテル、ジイソプロピルエーテル、tert-ブチルメチルエーテル、テトラヒドロフラン(THF)、ジオキサン、ピリジン、メタノール、エタノール、イソプロピルアルコール、ジメチルホルムアミド (DMF) 、ジメチルスルホキシド (DMSO)、アセトニトリル等が挙げられ、好ましくはDMFが挙げられる。これらは単独若しくは混合物として用いることができる。
化合物(III)としては、2-クロロ酢酸エチル、2-ブロモ酢酸エチル等が挙げられる。
化合物(II)及び化合物(III)は市販品として入手することもできる。
化合物(IV)に、水中又は水及び溶媒の混合溶媒中、基質濃度は0.1%~50%、好ましくは1%~30%で0~60℃、好ましくは10~40℃の間の温度で、反応pHは3~10、好ましくはpH 4~9で、基質に対し100,000分の1から10倍量、好ましくは10,000分の1から1倍量の酵素を作用させて、1~200時間、好ましくは5~150時間反応させることにより化合物(V)を得ることができる。さらに、緩衝液、又は金属塩を加えて反応を行うこともできる。
無機塩類としては、カリウム、ナトリウム、カルシウム、マグネシウム、マンガン、鉄などの硫酸塩、塩酸塩、炭酸塩、硝酸塩、リン酸塩などをそれぞれ単独で又は混合して用いることができる。さらに、ビタミン類などの通常の培養に用いられる栄養源を適宜添加してもよい。
化合物(V)に対し、(A)溶媒中、-50℃~150℃、好ましくは-30℃~80℃の温度で、1当量~大過剰量の縮合剤を5分間~72時間反応させた後、-50℃~150℃、好ましくは-30℃~80℃の温度で、1当量~大過剰量のアンモニア源を添加して、5分間~72時間反応させるか、(B)溶媒中、-50℃~150℃、好ましくは-30℃~80℃の温度で、1当量~大過剰量の活性化試薬を5分間~72時間反応させた後、-50℃~150℃、好ましくは-30℃~80℃の温度で、1当量~大過剰量のアンモニア源を添加して、5分間~72時間反応させるか、又は、(C)溶媒中、-50℃~150℃、好ましくは20℃~80℃の温度で、1当量~大過剰量の縮合剤の存在下、1当量~大過剰量のアンモニア源を添加して、5分間~72時間反応させることにより、化合物(VI)を得ることができる。
さらに、(A)~(C)いずれの場合も、10分の1~30当量の塩基を加えて反応を行うこともできる。
化合物(VI)に対し、溶媒中、-50℃~150℃、好ましくは-20℃~60℃の温度で、1当量~大過剰量の塩基を5分間~72時間作用させることにより化合物(I)又は化合物(VII)を得ることができる。
溶媒としては、シクロヘキサン、ベンゼン、トルエン、キシレン、ピリジン、ジエチルエーテル、ジイソプロピルエーテル、tert-ブチルメチルエーテル、THF、ジオキサン、水、イソプロピルアルコール、メタノール、エタノール、DMF、DMSO等が挙げられ、好ましくはエタノールが挙げられる。これらの溶媒は単独又は任意の混合物として用いることができる。
化合物(VII)のR1Aが加水素分解により脱保護される保護基で保護されたアミノであるときは、溶媒中、-50℃~150℃、好ましくは20℃~100℃の温度で、1~10気圧、より好ましくは1~5気圧の圧力下で、基質に対して10分の1~50重量%、好ましくは1~10重量%の金属触媒を添加して、水素又は水素供与体共存下、5分間~72時間反応させることにより化合物(I)を得ることができる。
水素供与体としては、ギ酸アンモニウム、シクロヘキセン、シクロヘキサ-1,3-ジエン、シクロヘキサ-1,4-ジエン等が挙げられる。
溶媒としては、シクロヘキサン、ベンゼン、トルエン、キシレン、ジエチルエーテル、ジイソプロピルエーテル、tert-ブチルメチルエーテル、THF、ジオキサン、酢酸メチル、酢酸エチル、酢酸ブチル、水、イソプロピルアルコール、メタノール、エタノール、DMF、ジクロロメタン、クロロホルム等が挙げられ、これの溶媒を単独又は任意の混合物として用いることができる。
工程(c)では、例えば、前記工程(b)で得られた生成物、約3当量のトリクロロアセチルクロリド、及び適量のクロロホルムの混合物を約16時間加熱還流させる。クロロホルムに代えて他の不活性溶媒(例えば、ジクロロメタン、THF等)を用いることもできる。通常では、常法に従って粗製の反応生成物を単離し、これを次工程に用いることができる。
工程(e)では、例えば、工程(d)で得られた化合物Aを適量の酢酸エチルとヘキサンの混合溶媒から再結晶する。他の再結晶溶媒として、エタノールなどのアルコール類を用いることもできる。
実施例及び参考例で用いられるプロトン核磁気共鳴スペクトル (1H NMR) は、300 MHzで測定されたものであり、化合物及び測定条件によって交換性プロトンが明瞭には観測されないことがある。なお、シグナルの多重度の表記としては通常用いられるものを用いるが、brとは見かけ上幅広いシグナルであることを表す。さらに、質量スペクトル(MS)により化合物の分子量の確認を行った。
また、化合物(I)、(IV)、(V)、(VI)、又は(VII)並びにそれらの塩は、水あるいは各種溶媒との付加物の形で存在することもあるが、これらの付加物も本発明に包含される。
ジエチル=2-ベンジルオキシカルボニルアミノマロナート5.0 g、炭酸カリウム2.7g、ヨウ化カリウム0.27 g及び2-クロロ酢酸エチル2.6 gのDMF 50 mL懸濁液を50℃で1時間撹拌した。冷後、反応液を希塩酸中に注ぎ、酢酸エチルで抽出し、飽和食塩水で洗浄後、無水硫酸マグネシウム上で乾燥した。溶媒を減圧留去し、残渣を酢酸エチル-n-ヘキサンから結晶化して表記の化合物5.5 g (収率86%)を無色結晶として得た。
1H NMR (CDCl3) δ(ppm): 7.34 (5H, m), 6.39 (1H, s), 5.10 (2H, s), 4.24 (4H, q, J= 6.9Hz), 4.10 (2H, q, J= 7.2Hz), 3.49 (2H, s), 1,21 (9H, m)
MS (FAB) : m/z 396(M+H+)
HR-MS(FAB) : calcd for C19H26NO8 396.1658, found 396.1653(M+H+)
ジエチル=2-ベンジルオキシカルボニルアミノマロナート50 gの無水DMF溶液300 mLに、氷冷撹拌下、水素化ナトリウム(60%) 6.47 gを徐々に加えた後、室温で30分間撹拌し、次いで2-ブロモ酢酸エチル22.6 gを加え一夜撹拌した。反応液を希塩酸中に注ぎ、酢酸エチルで抽出し、飽和食塩水で洗浄後、無水硫酸マグネシウム上で乾燥した。溶媒を減圧留去し、残渣をシリカゲルカラムクロマトグラフィーに付し、n-ヘキサン-酢酸エチル(5:1)で溶出、精製した後、酢酸エチル-n-ヘキサンから結晶化して表記の化合物46.7 g (収率83%)を無色結晶として得た。
(a)酵素精製
独立法人 製品評価技術基盤機構 バイオテクノロジー本部 生物遺伝資源部門より分譲を受けたBacillus thuringiensis NBRC13866 をGPY培地(1%グルコース、0.5%ペプトン、0.3%酵母エキスからなる培地)にて30℃、16時間、好気的に培養した。得られた培養液から、遠心分離(12,000 × g、10分)により、湿菌体を回収し、0.01 Mトリス塩酸緩衝液(pH8.0)に懸濁した。懸濁液を氷冷下、超音波ホモジナイザー(日本精機US-300T)により破砕した後、遠心分離(12,000 × g、10分間)により、上清と残渣に分離した。上清に氷冷下、硫酸アンモニウムを20%飽和濃度になるように加え、攪拌後、遠心分離(12,000 × g、10分間)を行い、上清を除いた。沈殿を1 mM Dithiothreitol (DTT) を含む0.01 Mトリス塩酸緩衝液(pH8.0)に懸濁し、同緩衝液により透析した。この溶液にDEAE Sepharose Fast Flow(GE Healthcare 社製)を加え、混合後、ろ過し、活性溶液を回収した。
上記(a)のDEAE Sepharoseカラム精製の活性画分を限外ろ過膜により濃縮した。濃縮液0.08 mL(約8 mU)、35%のジエチル=2-ベンジルオキシカルボニルアミノ-2-エトキシカルボニルスクシナートを含むアセトニトリル0.01 mL、1 M リン酸緩衝液(pH7)を0.01 mLを加え混合し、30℃で振盪した。反応液のpHは1N 水酸化ナトリウムを用いpH7.5に調整した。HPLC分析により、30時間後には反応収率70%で1-エチル=水素=3-ベンジルオキシカルボニルアミノ-3-エトキシカルボニルスクシナートが得られたことを確認した。生成物の光学純度をHPLCで確認したところ、R体であり、光学純度は100% eeであった。
1H NMR (CDCl3) δ(ppm): 7.35 (5H, m), 6.51 (1H, s), 5.09 (2H, m), 4.24 (2H, q, J= 7.2Hz), 4.08 (2H, q, J= 7.2Hz), 3.48 (2H, s), 1,19 (6H, m)
MS (FAB) : m/z 368(M+H+)
HR-MS(FAB) : calcd for C17H22NO8 368.1345, found 368.1314(M+H+)
上記(a)で精製した酵素のN末端アミノ酸配列分析を行なった。分析は株式会社アプロサイエンス(〒771-0360 徳島県鳴門市瀬戸町字板屋島124番4)に依頼した。分析の結果、Glu-Lys-Lys-Pro-Val-Ser-Leu-Thr-Glu-Arg-Thr-Ser-Leu-Phe-Pheの配列が得られた。この配列をDNA Data Bank of Japan(DDBJ)で相同性検索を行なったところ、Bacillus thuringiensis IBL 200の、遺伝子配列から推定されるHydrolase(accession no.C3IAP1)と相同性があった。
このHydrolaseの遺伝子情報を基にBacillus thuringiensis NBRC13866から酵素遺伝子の取得を行なった。Bacillus thuringiensis NBRC13866を5 mL GPY培地で、30℃、200rpmで24時間、振盪培養した培養液から、Genomic DNA Buffer set(株式会社キアゲン)及びQIAGEN Genomic-tip 500/G(株式会社キアゲン)を用いて単離したゲノムDNAを鋳型とし、5'-TAAATCCATTGCTTAACGCCTCTACTCTT (北海道システム・サイエンス株式会社)及び5'-TCACGCAATGATGATTGCATGATGGCTTT(北海道システム・サイエンス株式会社)をプライマーとして、KOD-plus-(東洋紡績株式会社)を使用して添付説明書に従いPCRを行った。PCR産物をpUC18(タカラバイオ株式会社)に挿入しプラスミドを構築した(pBTEST7)。
pBTEST7を鋳型とし、5'-AAACAGCATGCAAAAAAAGAAATTACAAAAATCAGCAC(北海道システム・サイエンス株式会社)および5'-CTTTTGTTGTAGATCTTTTCTTTGTCGCATTGACCCA(北海道システム・サイエンス株式会社)をプライマーとし、KOD-plus-を使用してPCRを行った。PCR産物をSph I(東洋紡績株式会社)、及びBgl II(東洋紡績株式会社)で消化し、pQE-70(株式会社キアゲン)のSph I及びBgl IIサイトに挿入したプラスミドを構築した(pBTEST12)。pBTEST12をCompetent high JM109(東洋紡績株式会社)を用いて添付説明書に従い大腸菌JM109に遺伝子導入し、大腸菌JM109/pBTEST12を作製した。
上記(e)で作製した大腸菌JM109/pBTEST12を100 mg/Lのアンピシリンナトリウム(和光純薬工業株式会社)を含む5 mLのLB液体培地(1.0%ポリペプトン、0.5%酵母エキス、1.0%塩化ナトリウム、pH 7.0)に植菌し、25℃、200 rpmで12時間振盪培養を行った。この培養液を0.1 mM イソプロピル-β-チオガラクトピラノシド(ナカライテスク株式会社)を含む200 mLのLB液体培地に植え継ぎ、25℃、200rpmで24時間振盪培養を行った。この培養液を1.6 L調製し、12,000 × g、4℃で10分間遠心分離し、菌体を得た。この菌体を精製水に懸濁し、35% ジエチル=2-ベンジルオキシカルボニルアミノ-2-エトキシカルボニルスクシナートを含むアセトニトリル溶液を10 mL、1.0 M リン酸緩衝液(pH7.0)を10 mL加え、さらに総量100 mLとなるよう精製水を加えた。この溶液を攪拌しながら、24時間、25℃に維持した。反応液のpHが7.0に維持されるように、適時28%水酸化ナトリウム溶液を加えた。
大腸菌JM109/pBTEST12を100mg/Lのアンピシリンナトリウムを含む5 mLのLB液体培地に植菌し、25℃、200 rpmで12時間振盪培養を行った。この培養液を0.1 mM イソプロピル-β-チオガラクトピラノシドを含む200 mLのLB液体培地に植え継ぎ、25℃、200rpmで24時間振盪培養を行った。この培養液からQIAexpress Type ATG Kit(株式会社キアゲン)を使用し、添付説明書に従い酵素精製を行った。精製した酵素溶液をSDS-PAGE(0.1%ドデシル硫酸ナトリウムを含む12% ポリアクリルアミドゲル)で電気泳動を行った結果、単一のバンドであり酵素精製できたことを確認した。
上記(d)において、エステラーゼ活性を有する蛋白質は、配列番号2に記載のアミノ酸配列のN末端側のアミノ酸配列が、40アミノ酸を欠損している蛋白質であることが分かった。このことから、N末端が欠損している蛋白質を発現する組換え大腸菌を作製した。
(R)-1-エチル=水素=3-ベンジルオキシカルボニルアミノ-3-エトキシカルボニルスクシナート1.8 gのTHF 20 mL溶液に-15℃撹拌下、トリエチルアミン0.96 mL、クロロギ酸イソブチル0.84 mL (0.87 g)の順で加え、5分間撹拌した。同温度にて25%アンモニア水0.47 mLを反応液に滴下した。同温度にて1時間撹拌後、反応液を希塩酸中に注ぎ、酢酸エチルで抽出し、無水硫酸マグネシウム上で乾燥した。溶媒を減圧留去し、残渣をシリカゲルカラムクロマトグラフィーに付し、n-ヘキサン-酢酸エチル(1:1)で溶出、精製した後、酢酸エチル-n-ヘキサンから結晶化して表記の化合物1.51 g (収率84%)を無色結晶として得た。旋光度は[α]D 25 -5.7°(c 0.52、エタノール)、光学純度は96.1% eeであった。
1H NMR (CDCl3) δ(ppm): 7.34 (5H, m), 6.51 (1H, br), 6.35 (1H, br), 5.63 (1H, br), 5.12 (2H, s), 4.26 (2H, m), 4.10 (2H, q, J= 7.2 Hz), 3.48 (2H, s), 1,23 (6H, m)
MS (FAB) : 367(M+H+)
HR-MS(FAB) : calcd for C17H23N2O7 367.1505, found 367.1509(M+H+)
氷冷撹拌下、(R)-ジエチル=2-ベンジルオキシカルボニルアミノ-2-カルバモイルスクシナート200 mgの無水エタノール10 mL溶液に、ナトリウムエトキシド 41 mgを加え、同温度で2時間撹拌した後、冷1 mol/L塩酸を注ぎ、酢酸エチルで抽出した。抽出液を飽和食塩水で洗浄後、無水硫酸マグネシウム上で乾燥した。溶媒を減圧留去し残渣を酢酸エチル-n-ヘキサンから再結晶して表記の化合物149 mg (収率85%)を無色結晶として得た。旋光度は[α]D 28 -31.8°(c 0.59、エタノール)、光学純度は99.2% eeであった。
1H NMR (CDCl3) δ(ppm): 8.39 (1H, s), 7.36 (5H, m), 6.27 (1H, s), 5.12 (2H, m), 4.32 (2H, q, J= 6.9Hz), 3.18 (2H, m), 1,29 (3H, t, J= 7.1Hz)
MS (FAB) : 321(M+H+)
HR-MS(FAB) : calcd for C15H17N2O6 321.1087, found 321.1074(M+H+)
(R)-2-ベンジルオキシカルボニルアミノ-2-エトキシカルボニルスクシンイミド80 mgをエタノール10 mLに溶解し、5%パラジウム-炭素4 mgを加え、水素雰囲気下、室温で接触水素化した。触媒を濾去した後、濾液を減圧濃縮した。残渣をエタノールから再結晶して、表記の化合物43 mg (収率93%)を無色結晶として得た。旋光度は[α]D 24-35.9°(c0.22、エタノール)であった。光学純度 は 99.9% ee 以上であった。
1H NMR (CDCl3) δ(ppm): 4.28 (2H, q, J= 7.2Hz), 3.19 (1H, d, J= 18.0Hz), 2.74 (1H, d, J= 18.0Hz), 1,30 (3H, t, J= 7.1Hz)
MS (FAB) : 187(M+H+)
HR-MS(FAB) : calcd for C7H11N2O4 187.0719, found 187.0700(M+H+)
Claims (12)
- 式(I) :
で表される光学活性スクシンイミド誘導体又はその塩の製造方法であって、以下の工程(A)~(D)、さらに必要により工程 (E)を含む製造方法:
(A) 式(II):
で表されるハロゲン化酢酸エステル誘導体を塩基の存在下で反応させて式(IV) :
で表されるエステル誘導体又はその塩に変換する工程、
(B)式(IV)で表されるエステル誘導体又はその塩に非動物由来の酵素、該酵素を生産する細胞、該細胞の培養物、又は該細胞若しくは該細胞の培養物の処理物を作用させ、式(V):
で表される光学活性カルボン酸誘導体又はその塩に変換する工程、
(C)式(V)で表される光学活性カルボン酸誘導体又はその塩を縮合剤の存在下、アンモニア源と反応させるか、又は活性化試薬と反応させた後に、さらにアンモニア源と反応させて、式(VI):
で表される光学活性アミド誘導体又はその塩に変換する工程、
(D)式(VI)で表される光学活性アミド誘導体又はその塩に塩基を作用させて、式(I)又は式(VII):
で表される光学活性スクシンイミド誘導体又はその塩に変換する工程、
(E)式(VII)で表される光学活性スクシンイミド誘導体又はその塩のR1A上の保護基を脱保護して、上記式(I)で表される光学活性スクシンイミド誘導体又はその塩に変換する工程。 - 式(IV)で表されるエステル誘導体又はその塩に非動物由来の酵素、該酵素を生産する細胞、該細胞の培養物、又は該細胞若しくは該細胞の培養物の処理物を作用させる工程を含む、式(V)で表される光学活性カルボン酸誘導体又はその塩の製造方法。
- 酵素が微生物由来エステラーゼである請求項1又は2に記載の製造方法。
- 酵素がバチルス属に属する微生物由来エステラーゼである請求項1又は2に記載の製造方法。
- 酵素がバチルス・チューリンゲンシス(Bacillus thuringiensis)由来エステラーゼである請求項1又は2に記載の製造方法。
- 酵素が以下の(a)~(d)より選ばれる蛋白質である請求項1又は2に記載の製造方法。
(a)配列番号2に記載のアミノ酸配列により特定される蛋白質
(b)配列番号2に記載のアミノ酸配列において1つ又は複数のアミノ酸が置換及び/又は欠失及び/又は付加されたアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(c)配列番号2に記載のアミノ酸配列と95%以上の同一性を有するアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(d)配列番号2に記載のアミノ酸配列において、N末端から1~40個のアミノ酸残基が欠失したアミノ酸配列を有する蛋白質 - R1及びR1Aがベンジルオキシカルボニルアミノであり、R2がエチルであり、R3がエチルである請求項1ないし6のいずれか1項に記載の製造方法。
- 請求項1に記載の製造方法により、式(I)で表される光学活性スクシンイミド誘導体{以下、化合物(I)と称する}を製造する工程、及び該工程で得られた化合物(I)を(3R)-2'-(4-ブロモ-2-フルオロベンジル)スピロ[ピロリジン-3,4'(1'H)-ピロロ[1,2-a]ピラジン]-1',2,3',5(2'H)-テトラオン(以下、化合物Aと称する)に変換する工程を含む化合物Aの製造方法。
- 化合物Aの製造方法であって、下記(a)~(e)の工程を含む製造方法:
(a)化合物(I)を(1)に記載の製造方法で製造する工程;
(b)前記工程(a)で得られた化合物(I)を酸(例えば、酢酸など)の存在下に2,5-ジメトキシテトラヒドロフランと反応させる工程;
(c)前記工程(b)で得られた生成物をトリクロロアセチル化試薬(例えば、トリクロロアセチルクロリド、トリクロロアセチルブロミド、無水トリクロロ酢酸など)と反応させる工程;
(d)前記工程(c)で得られた生成物を4-ブロモ-2-フルオロベンジルアミンと反応させる工程;及び
(e)前記工程(d)で得られた化合物Aを単離する工程。 - R3がエチルである請求項8又は9に記載の製造方法。
- 以下の(a)~(d)より選ばれる蛋白質。
(a)配列番号2に記載のアミノ酸配列により特定される蛋白質
(b)配列番号2に記載のアミノ酸配列において1つ又は複数のアミノ酸が置換及び/又は欠失及び/又は付加されたアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(c)配列番号2に記載のアミノ酸配列と95%以上の同一性を有するアミノ酸配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質
(d)配列番号2に記載のアミノ酸配列において、N末端から1~40個のアミノ酸残基が欠失したアミノ酸配列を有する蛋白質 - 以下の(a)~(d)より選ばれるDNA。
(a)配列番号1に記載の塩基配列により特定されるDNA
(b)請求項11に記載の蛋白質をコードするDNA
(c)配列番号1に記載の塩基配列において1つ又は複数の塩基が置換及び/又は欠失及び/又は付加された塩基配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質をコードするDNA
(d)配列番号1に記載の塩基配列と相補的な配列からなるDNAとストリンジェントな条件下でハイブリダイズする塩基配列からなり、かつ配列番号2に記載のアミノ酸配列により特定されるエステラーゼと同様のエステラーゼ活性を有する蛋白質をコードするDNA
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JPH06192222A (ja) * | 1992-12-25 | 1994-07-12 | Dainippon Pharmaceut Co Ltd | コハク酸イミド誘導体 |
WO2008035735A1 (fr) * | 2006-09-20 | 2008-03-27 | Nissan Chemical Industries, Ltd. | Procédé de production d'un composé de succinimide optiquement actif |
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TW202450B (ja) | 1991-06-26 | 1993-03-21 | Dainippon Pharmaceutical Co | |
JPH10245369A (ja) | 1997-03-03 | 1998-09-14 | Ajinomoto Co Inc | セリン誘導体の製造方法 |
EP2395097A1 (en) * | 2009-02-06 | 2011-12-14 | Dainippon Sumitomo Pharma Co., Ltd. | Method for producing optically active succinimide derivative and intermediate thereof |
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---|---|---|---|---|
JPH06192222A (ja) * | 1992-12-25 | 1994-07-12 | Dainippon Pharmaceut Co Ltd | コハク酸イミド誘導体 |
WO2008035735A1 (fr) * | 2006-09-20 | 2008-03-27 | Nissan Chemical Industries, Ltd. | Procédé de production d'un composé de succinimide optiquement actif |
Non-Patent Citations (2)
Title |
---|
DATABASE GENBANK [online] 30 April 2009 (2009-04-30), READ T D., ET AL.,: "Diffinition: Bacillus thuringiensis IBL 200 contig00202", retrieved from http://www.ncbi.nlm.nih.gov/nuccore/ACNK 01000123 Database accession no. ACNK01000123 * |
NEGORO T. ET AL.: "Novel, highly potent aldose reductase inhibitors: (R)-(-)-2-(4-bromo-2- fluorobenzyl)-1,2,3,4-tetrahydropyrrolo[1,2-a] pyrazine -4-spiro-3'-pyrrolidine-1,2',3,5'- tetrone (AS-3201) and its congeners", J. MED. CHEM., vol. 41, no. 21, 1998, pages 4118 - 4129, XP002444928, DOI: doi:10.1021/jm9802968 * |
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US20130196388A1 (en) | 2013-08-01 |
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