WO2000058500A1 - THE PREPARATION OF trans-4-AMINO-2-CYCLOPENTENE-1-CARBOXYLIC ACID DERIVATIVES - Google Patents
THE PREPARATION OF trans-4-AMINO-2-CYCLOPENTENE-1-CARBOXYLIC ACID DERIVATIVES Download PDFInfo
- Publication number
- WO2000058500A1 WO2000058500A1 PCT/GB2000/001141 GB0001141W WO0058500A1 WO 2000058500 A1 WO2000058500 A1 WO 2000058500A1 GB 0001141 W GB0001141 W GB 0001141W WO 0058500 A1 WO0058500 A1 WO 0058500A1
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- Prior art keywords
- process according
- trans
- alkyl
- mixture
- compound
- Prior art date
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- 0 *[C@](C1)C=CC1N(*)* Chemical compound *[C@](C1)C=CC1N(*)* 0.000 description 3
Classifications
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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
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/02—Amides, e.g. chloramphenicol or polyamides; Imides or polyimides; Urethanes, i.e. compounds comprising N-C=O structural element or polyurethanes
-
- 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
Definitions
- This invention relates to the synthesis of single enantiomers of trans-4- aminocyclopent-2-ene-l-carboxylic acid derivatives by way of an enzymic separation of cis- and tr ⁇ ns-isomers.
- GABA ⁇ -Aminobutyric acid
- GABA serves as an inhibitory transmitter in the central nervous system, and GABA receptors, of which there are several, are targets for new molecules which are agonists or antagonists of these.
- GABA GABA
- analogues of GABA which are pharmacologically active and modify the behaviour of the central nervous system.
- An example of such a drug is baclofen, a GAB Ag receptor agonist, which was introduced 25 years ago for the treatment of spasticity.
- baclofen a GAB Ag receptor agonist
- more sophisticated and selective compounds are sought by pharmaceutical companies to act as selective cognitive enhancers, antidepressents, anxiolytic or epilepsy drugs.
- This chemistry has several disadvantages besides the inability to synthesise one of a pair of the enantiomeric amino acids. It requires high temperature (200°C) molten epimerisation, involves a low yielding crystallisation step and uses toxic reagents in the deprotection.
- the carbocyclic nucleoside abacavir a potent reverse transcriptase inhibitor, is synthesised using enantiomerically pure (-)-2-azabicyclo[2.2.1 ]hept-5-en-3-one as a chiral building block.
- This drug has been produced at multi-tonne scale, and an economical bioresolution of 2-azabicyclo[2.2. l]hept-5-en-3-one, to provide the chiral building block as a single enantiomer, is disclosed in WO-A-98/10075. This uses a cloned lactamase at high volume efficiency:
- the residual (-)-lactam and the (+)-amino acid product can be converted into single enantiomer N-Boc ct-s-amino esters 2 and 3 using standard chemical methods.
- the process of the invention can be conducted by base-induced epimerisation at
- R 1 is H or alkyl
- R 2 is alkoxy, alkyl, aryl or H
- R 3 is H or any non-interfering organic group
- R 4 is alkyl.
- the invention also includes the use of the opposite enantiomers of compounds (4) and (5). Description of the Invention
- R is not critical to the invention. Any suitable alkoxy, alkyl or non-interfering group can be used and can be readily determined by one skilled in the art. It may have up to 6, 10 or 20 C atoms.
- R 2 is preferably alkoxy.
- R 3 is preferably H. In a particularly preferred embodiment of the present invention, R 2 is t ⁇ rt- butoxy, R 3 is H, and R 4 is methyl or ethyl.
- N-Boc c/ ' s-amino ester 2 may be treated with methanol and catalytic sodium methoxide, as depicted for 2:
- the enzyme did not recognise the stereochemistry at the -NHBOC position, which is surprising, since it is a relatively bulky group, but instead provided a separation of each enantiomeric series of isomers on the basis of the absolute stereochemistry at the carboxyl ester alone. It preferred in each case to hydroiyse the (R)-carboxyl ester. This is illustrated schematically above. Other suitable selective enzymes can readily be identified by routine experimentation, based on the information provided herein.
- this invention provides a convenient and scaleable route to protected forms of both enantiomers of tr «s-4-aminocyclopent-2-ene- 1 -carboxylic acid.
- the route is also efficient in that the remaining cis isomer can be recovered and epimerised further for another separation.
- N-Boc amino acid (6) and N-Boc amino ester (7) are obtained. These compounds can be readily deprotected to yield the free amino acids.
- N-Boc protection is convenient for use of (6) and (7) as chiral scaffolds, to generate single isomer libraries for initial lead identification as part of a drug discovery programme.
- the following Examples illustrate the invention.
- Example 1 Synthesis of N-Boc-(-Vamino acid methyl ester (2)
- a total of five enzymes was screened to evaluate their potential for selectively hydrolysing either the cis or trans epimer.
- the enzymes used were: pig pancreatic lipase (PPL), Candida rugosa lipase (CCL), lipase PS, Chirazyme L9 and Chirazyme L2.
- PPL pancreatic lipase
- CCL Candida rugosa lipase
- PS lipase PS
- Chirazyme L9 Chirazyme L2
- 50mg of substrate was placed into a scintillation vial with 5ml of 50mM potassium phosphate buffer, pH 7 and 20mg of enzyme. All five vials were continuously agitated at 26°C in a water bath/shaker. After 18 hours all reactions were extracted with 5ml ethyl acetate. The organic extracts were dried over magnesium sulfate and analysed by GC-MS.
- the carboxylic acid resulting from the hydrolysis of the cis epimer was recovered by acidification of the aqueous phase with 1.2M HCl and subsequent extraction with 3 x 50ml ethyl acetate. The combined extracts were dried over magnesium sulfate and removal of solvent yielded a colourless oil that solidified on standing. ⁇ MR analysis confirmed the identity of the carboxylic acid and indicated a 4:1 cis.trans ratio.
- Example 5 Enzymic Resolution of a mixture of N-Boc C-Vaminoester (2 and its C-l epimer lg (4.15mmol) of the epimeric mixture, 100ml of 50mM potassium phosphate buffer, pH7, and 400mg lipase CCL Type V were placed into a 250ml conical flask. The reagents were left to shake in a water bath/shaker at 26°C for 24 hours, after which time the reaction was extracted with 3 x 50ml ethyl acetate. The combined organic extracts were washed with 50ml of saturated sodium bicarbonate solution and dried over magnesium sulfate. Removal of solvents by rotary evaporator yielded 220mg of a yellow oil. GC-MS analysis indicated that the recovered material was almost exclusively the cis- aminoester (2).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Analytical Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU34454/00A AU3445400A (en) | 1999-03-26 | 2000-03-24 | The preparation of (trans)-4-amino-2-cyclopentene-1-carboxylic acid derivatives |
EP00912810A EP1165829A1 (en) | 1999-03-26 | 2000-03-24 | THE PREPARATION OF (trans)-4-AMINO-2-CYCLOPENTENE-1-CARBOXYLIC ACID DERIVATIVES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9907082.3A GB9907082D0 (en) | 1999-03-26 | 1999-03-26 | The preparation of carboxylic acid derivatives |
GB9907082.3 | 1999-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000058500A1 true WO2000058500A1 (en) | 2000-10-05 |
Family
ID=10850482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/001141 WO2000058500A1 (en) | 1999-03-26 | 2000-03-24 | THE PREPARATION OF trans-4-AMINO-2-CYCLOPENTENE-1-CARBOXYLIC ACID DERIVATIVES |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1165829A1 (en) |
AU (1) | AU3445400A (en) |
GB (1) | GB9907082D0 (en) |
WO (1) | WO2000058500A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007091110A1 (en) * | 2006-02-09 | 2007-08-16 | Szegedi Tudomanyegyetem | Enzymatic resolution process for the preparation of cycli-c beta-amino acid and ester enatiomers |
WO2011003061A3 (en) * | 2009-07-02 | 2011-05-05 | Dr. Reddy's Laboratories Ltd. | Production of trans-4-aminocyclopent-2-ene-1-carboxylic acid derivatives |
US8236853B1 (en) | 2007-12-03 | 2012-08-07 | University Of South Florida | Formation of cyclopentene nitro-ester and derivatives |
US8933225B2 (en) | 2007-08-02 | 2015-01-13 | Millennium Pharmaceuticals, Inc. | Process for the synthesis of E1 activating enzyme inhibitors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0407033A2 (en) * | 1989-06-05 | 1991-01-09 | Rhone-Poulenc Inc. | Lipase and isozymes, notably of Candida rugosa, and their use |
WO1994001542A1 (en) * | 1992-07-03 | 1994-01-20 | Consejo Superior Investigaciones Cientificas | METHOD FOR PURIFYING TWO ISOENZYME LIPASES OF $i(CANDIDA RUGOSA) |
WO1998010075A1 (en) * | 1996-09-03 | 1998-03-12 | Chirotech Technology Limited | Microorganism, lactamase enzyme obtained therefrom, and their use |
WO1999014338A1 (en) * | 1997-09-16 | 1999-03-25 | Unilever N.V. | Total synthesis and functional overexpression of a candida rugosa lip1 gene coding for a major industrial lipase |
-
1999
- 1999-03-26 GB GBGB9907082.3A patent/GB9907082D0/en not_active Ceased
-
2000
- 2000-03-24 EP EP00912810A patent/EP1165829A1/en not_active Withdrawn
- 2000-03-24 WO PCT/GB2000/001141 patent/WO2000058500A1/en not_active Application Discontinuation
- 2000-03-24 AU AU34454/00A patent/AU3445400A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0407033A2 (en) * | 1989-06-05 | 1991-01-09 | Rhone-Poulenc Inc. | Lipase and isozymes, notably of Candida rugosa, and their use |
WO1994001542A1 (en) * | 1992-07-03 | 1994-01-20 | Consejo Superior Investigaciones Cientificas | METHOD FOR PURIFYING TWO ISOENZYME LIPASES OF $i(CANDIDA RUGOSA) |
WO1998010075A1 (en) * | 1996-09-03 | 1998-03-12 | Chirotech Technology Limited | Microorganism, lactamase enzyme obtained therefrom, and their use |
WO1999014338A1 (en) * | 1997-09-16 | 1999-03-25 | Unilever N.V. | Total synthesis and functional overexpression of a candida rugosa lip1 gene coding for a major industrial lipase |
Non-Patent Citations (6)
Title |
---|
B.L. KAM AND N.J. OPPENHEIMER: "Carbocyclic sugar amines: Synthesis and stereochemistry of racemic alpha- and beta-carbocyclic ribofuranosylamine, carbocyclic lyxofuranosylamine, and related compounds", J. ORG. CHEM., vol. 46, 1981, AMERICAN CHEMICAL SOCIETY, US, pages 3268 - 3272, XP002123868 * |
K. HIROYA ET AL.: "Lipase-mediated kinetic separation of a diastereomeric mixture of 4-tert-Butylcyclohexanemethanol", SYNTHESIS, April 1995 (1995-04-01), THIEME, STUTTGART, FRG, pages 379 - 381, XP002123869 * |
MONECKE P ET AL: "MOLECULAR MODELLING STUDIES ON THE CATALYTIC MECHANISM OF CANDIDA RUGOSA LIPASE", JOURNAL OF MOLECULAR MODELING,DE,SPRINGER VERLAG, vol. 4, no. 12, 1998, pages 395 - 404, XP000856919, ISSN: 0948-5023 * |
R. CSUK AND P. DÖRR: "Biocatalytical transformations-IV. Enantioselective enzymatic hydrolyses of building blocks for the synthesis of carboccylic nucleosides", TETRAHEDRON: ASYMMETRY, vol. 5, no. 2, 1994, PERGAMON PRESS, ELSEVIER SCIENCE, NY, US, pages 269 - 276, XP002123867 * |
R. CSUK AND P. DÖRR: "Biocatalytical transformations-VI. The 4-Acetamido-cyclopent-2-ene carboxylate route revisited: Synthesis of (1)-and (-)-Aristeromycin", TETRAHEDRON, vol. 51, no. 20, 1995, PERGAMON PRESS, ELSEVIER, NY, US, pages 5789 - 5798, XP002123866 * |
TAYLOR S J C ET AL: "DEVELOPMENT OF THE BIOCATALYTIC RESOLUTION OF 2-AZABICYCLOU2.2.1HEPT-5-EN-3-ONE AS AN ENTRY TO SINGLE-ENANTIOMERCARBOCYCLIC NUCLEOSIDES", TETRAHEDRON: ASYMMETRY,NL,ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, vol. 4, no. 6, 1 January 1993 (1993-01-01), pages 1117 - 1128, XP002041316, ISSN: 0957-4166 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007091110A1 (en) * | 2006-02-09 | 2007-08-16 | Szegedi Tudomanyegyetem | Enzymatic resolution process for the preparation of cycli-c beta-amino acid and ester enatiomers |
US8933225B2 (en) | 2007-08-02 | 2015-01-13 | Millennium Pharmaceuticals, Inc. | Process for the synthesis of E1 activating enzyme inhibitors |
US9802938B2 (en) | 2007-08-02 | 2017-10-31 | Millennium Pharmaceuticals, Inc. | Sulfamoylating reagents |
US10745404B2 (en) | 2007-08-02 | 2020-08-18 | Millennium Pharmaceuticals, Inc. | Process for the synthesis of E1 activating enzyme inhibitors |
US8236853B1 (en) | 2007-12-03 | 2012-08-07 | University Of South Florida | Formation of cyclopentene nitro-ester and derivatives |
WO2011003061A3 (en) * | 2009-07-02 | 2011-05-05 | Dr. Reddy's Laboratories Ltd. | Production of trans-4-aminocyclopent-2-ene-1-carboxylic acid derivatives |
JP2012532145A (en) * | 2009-07-02 | 2012-12-13 | ドクター・レディーズ・ラボラトリーズ・リミテッド | Production of trans-4-aminocyclopent-2-ene-1-carboxylic acid derivative |
US8524943B2 (en) | 2009-07-02 | 2013-09-03 | Dr. Reddy's Laboratories, Inc. | Production of trans-4-aminocyclopent-2-ene-1-carboxylic acid derivatives |
Also Published As
Publication number | Publication date |
---|---|
EP1165829A1 (en) | 2002-01-02 |
AU3445400A (en) | 2000-10-16 |
GB9907082D0 (en) | 1999-05-19 |
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