DD298429A5 - PROCESS FOR PREPARING R - (+) - 3-OXOCYCLOALKANCARBONSAEURENETERALKYLESTER - Google Patents
PROCESS FOR PREPARING R - (+) - 3-OXOCYCLOALKANCARBONSAEURENETERALKYLESTER Download PDFInfo
- Publication number
- DD298429A5 DD298429A5 DD90342664A DD34266490A DD298429A5 DD 298429 A5 DD298429 A5 DD 298429A5 DD 90342664 A DD90342664 A DD 90342664A DD 34266490 A DD34266490 A DD 34266490A DD 298429 A5 DD298429 A5 DD 298429A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- alkyl esters
- racemic
- ester
- hexancarbonsäure
- oxocyclopentan
- Prior art date
Links
Classifications
-
- 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
-
- 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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- 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
„Cycloalkan" für Cycloheptan und Cyclohexan und „Niederalkyl" für C1-C4-AIkVl steht) durch enzymatische Spaltung derentsprechenden Racemate."Cycloalkane" is cycloheptane and cyclohexane and "lower alkyl" is C 1 -C 4 -alkyl) by enzymatic cleavage of the corresponding racemates.
als Arzneistoffe verwendbarer Hetrazepine. Für die Synthese enantiomerenreiner Verbindungen aus dieser Substanzklasse istdie Verwendung von 3-Oxocycloalkancarbonsäuroestern vorteilhaft, welche die gleiche Konfiguration am optisch aktivenHetrazepines useful as drugs. For the synthesis of enantiomerically pure compounds from this class of substances, it is advantageous to use 3-oxocycloalkanecarboxylic acid esters having the same configuration on the optically active
333-335 (1958]). Zur Herstellung des für die Hetrazepin-Synthese benötigten Esters kann die freigesetzte R-(+)-3-333-335 (1958)). For the preparation of the ester required for the synthesis of hetrazepine, the released R - (+) - 3-
schlecht verfügbar ist.is poorly available.
in technischem Maßstab erhalten werden, indem man racemische 3-Oxocycloalkancarbonsäureester mit solchen Hydrolasenbehandelt, welche den nicht benötigten Ester spalten, so daß die entstehende Säure leicht vom gewünschten Ester abgetrenntund dieser dann isoliert werden kann.can be obtained on an industrial scale by treating racemic 3-Oxocycloalkancarbonsäureester with such hydrolases, which cleave the unneeded ester, so that the resulting acid can be easily separated from the desired ester and this can then be isolated.
ausgeführt, wobei der pH-Wert mittels eines üblichen Phosphatpuffers und Alkalizugabe zwischen etwa 7 und 8 gehalten wird.carried out, wherein the pH is maintained by means of a conventional phosphate buffer and alkali addition between about 7 and 8.
cylinderace (CCL). Besonders geeignet ist Schweineleberesterase (PLE). Die Enzyme können auch in an sich bekannter Weiseimmobilisiert angewendet werden, z. B. gebunden an das Handelsprodukt Eupergit C (Fa. Röhm Pharma, Darmstadt).cylinderace (CCL). Particularly suitable is pork liver esterase (PLE). The enzymes may also be immobilized in a manner known per se, e.g. B. bound to the commercial product Eupergit C (Röhm Pharma, Darmstadt).
insbesondere der Methyl- oder Ethylester der 3-Oxocylopentancarbonsau;e und der S-Oxocyclohexancarbonsäure.in particular the methyl or ethyl ester of 3-oxocyclopentanecarboxylic acid and S-oxocyclohexanecarboxylic acid.
molarem Phosphatpuffer, pH 7,5, (Kaliumdihydrogenphosphat, Dinatriumhydrogenphosphat) wird bei 200Cmolar phosphate buffer, pH 7.5, (potassium dihydrogen phosphate, disodium hydrogen phosphate) is at 20 0 C.
durch Extraktion* abgebrochen. Der nicht umgesetzte Ester wird durch dreimaliges Ausrühren mit je 500ml Methylenchloridextrahiert. Die Methylenchloridphase wird über Natriumsulfat getrocknet, filtriert und das Lösungsmittel im Vakuumterminated by extraction *. The unreacted ester is extracted by stirring three times with 500 ml of methylene chloride. The methylene chloride phase is dried over sodium sulfate, filtered and the solvent in vacuo
abdestiJliert. Der Rückstand wird ohne Destillation weiterverarbeitet.abdestiJliert. The residue is processed further without distillation.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3922752A DE3922752A1 (en) | 1989-07-11 | 1989-07-11 | METHOD FOR THE PRODUCTION OF R - (+) -3-OXOCYCLOALKANCARBONESEURENEDERALKYLESTERS |
Publications (1)
Publication Number | Publication Date |
---|---|
DD298429A5 true DD298429A5 (en) | 1992-02-20 |
Family
ID=6384722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD90342664A DD298429A5 (en) | 1989-07-11 | 1990-07-10 | PROCESS FOR PREPARING R - (+) - 3-OXOCYCLOALKANCARBONSAEURENETERALKYLESTER |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0407909B1 (en) |
JP (1) | JPH05501049A (en) |
AT (1) | ATE113662T1 (en) |
CA (1) | CA2064248A1 (en) |
DD (1) | DD298429A5 (en) |
DE (2) | DE3922752A1 (en) |
DK (1) | DK0407909T3 (en) |
ES (1) | ES2064544T3 (en) |
GR (1) | GR3014935T3 (en) |
WO (1) | WO1991000922A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19844876A1 (en) * | 1998-09-30 | 2000-04-06 | Basf Ag | Optical resolution of arylalkanoic acid vinyl or isopropenyl ester, useful in rapid preparation of optically pure chiral carboxylic acids, by enantio-selective transesterification in presence of lipase or esterase |
FR2796641B1 (en) * | 1999-07-22 | 2001-09-21 | Aventis Pharma Sa | NOVEL PROCESS FOR THE PREPARATION OF BENZOPERHYDROISOINDOLE COMPOUNDS |
-
1989
- 1989-07-11 DE DE3922752A patent/DE3922752A1/en not_active Withdrawn
-
1990
- 1990-07-06 JP JP2510289A patent/JPH05501049A/en active Pending
- 1990-07-06 EP EP90112919A patent/EP0407909B1/en not_active Expired - Lifetime
- 1990-07-06 AT AT90112919T patent/ATE113662T1/en not_active IP Right Cessation
- 1990-07-06 ES ES90112919T patent/ES2064544T3/en not_active Expired - Lifetime
- 1990-07-06 CA CA002064248A patent/CA2064248A1/en not_active Abandoned
- 1990-07-06 WO PCT/EP1990/001089 patent/WO1991000922A1/en active Application Filing
- 1990-07-06 DE DE59007604T patent/DE59007604D1/en not_active Expired - Fee Related
- 1990-07-06 DK DK90112919.7T patent/DK0407909T3/en active
- 1990-07-10 DD DD90342664A patent/DD298429A5/en not_active IP Right Cessation
-
1995
- 1995-02-01 GR GR950400199T patent/GR3014935T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE3922752A1 (en) | 1991-01-17 |
WO1991000922A1 (en) | 1991-01-24 |
GR3014935T3 (en) | 1995-05-31 |
JPH05501049A (en) | 1993-03-04 |
DK0407909T3 (en) | 1995-01-16 |
DE59007604D1 (en) | 1994-12-08 |
CA2064248A1 (en) | 1991-01-12 |
ES2064544T3 (en) | 1995-02-01 |
ATE113662T1 (en) | 1994-11-15 |
EP0407909B1 (en) | 1994-11-02 |
EP0407909A1 (en) | 1991-01-16 |
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