WO1993011256A1 - Procede de production d'un norborneol presentant une activite optique - Google Patents
Procede de production d'un norborneol presentant une activite optique Download PDFInfo
- Publication number
- WO1993011256A1 WO1993011256A1 PCT/JP1992/001588 JP9201588W WO9311256A1 WO 1993011256 A1 WO1993011256 A1 WO 1993011256A1 JP 9201588 W JP9201588 W JP 9201588W WO 9311256 A1 WO9311256 A1 WO 9311256A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exo
- norborneol
- reaction
- ester
- added
- Prior art date
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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
- 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
- C12P41/004—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 alcohol- or thiol groups in the enantiomers or the inverse reaction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/822—Microorganisms using bacteria or actinomycetales
- Y10S435/823—Acetobacter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/822—Microorganisms using bacteria or actinomycetales
- Y10S435/83—Arthrobacter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/822—Microorganisms using bacteria or actinomycetales
- Y10S435/874—Pseudomonas
- Y10S435/875—Pseudomonas aeruginosa
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/8215—Microorganisms
- Y10S435/911—Microorganisms using fungi
- Y10S435/94—Saccharomyces
Definitions
- the present invention relates to a method for producing optically active norborneol by treating an oxanol-portal-type ester with a microorganism.
- norbornane is used as a starting material to react with an organic acid to form an ester form of norbornane.
- a method for chemically deacetylating an ester form to obtain norpolneol There is known a method for chemically deacetylating an ester form to obtain norpolneol.
- four kinds of stereoisomers ((+, one)-(endo, ⁇ ) -norborneol) are generated, so that optically active norborneol is chemically synthesized. This requires a complicated reaction process.
- the present invention provides a high-purity optically active norborneol by treating an exo-norpornan type ester using a microorganism. Provide a way to get
- R represents an acyl group
- a and B each represent a waterline or a bond taken together.
- (2S) -exo-norbornane-type alcohol or (2R) -exo-norbornane-type ester is fractionated from the reaction solution.
- R represents an acyl group
- a and B each represent hydrogen or a bond in the form of a bond.
- the acyl group is an aliphatic acyl group having 2 to 10 carbon atoms, preferably an aliphatic acyl group having 2 to 7 carbon atoms, for example, acetyl, Propioyl, butyryl, isoptyryl, pentanoyl, hexyl / hexyl, particularly preferably holmyl, acetyl, provyl or isoptiryl.
- the aryl group may alternatively be a 4- to 10-carbon cycloalkylcarbonyl group, preferably a 4- to 7-cycloalkylcarboxy group, for example, Cyclopropane carbonyl, cyclobutane carbonyl, cyclopentane carbole and cyclohexane carbyl. Or an arylcarbonyl group, preferably having 7 to 11 carbon atoms, such as benzyl, P-toluoyl, and naphthyl. Can be done.
- Such compounds can be used commercially or can be easily produced by chemical synthesis.
- norbornane is reacted with a suitable organic acid (eg, acetic acid, drunk acid, bromoponic acid, ⁇ acid, etc.) in the presence of an acid catalyst, or is reacted with a vinyl ester of a suitable organic acid.
- Dealer Cyclopentagen By subjecting it to the Ruder (Diels-AUer) reaction, the desired (soil) exo-norbornane ester (I) can be obtained in high yield.
- microorganisms belonging to Pseudomonas II, Acetobacter II, Earth Lombarder II, Rhodotorula II, or Saccharomyces can be used.
- Pseudoaonas aeruei nosa) case ⁇ cetobacter pasteurianus, arthrobacter esb, Rhodotorula pall Ida, Rhodotorula rubra or Rhodotorula rubra or Saccharo sp.
- SLZi i SP. May be used. Particularly at high speeds, Acetobacter • 'Strain (Acetobacter pasteurianus) and Arthrobacter sp. (Arthrobacter s £.) Are used. Specifically, Pseudoaonas aerugi nosa IFO 12582, Acetob acter pasteurianus ATCC 9432, Acetobacter pasteurianus ATCC 12873, Arthrobacter s £ .SHS-0145 Strains such as Rhodo torula rubra IPO 1101, Rhodotoru la rubra ATCC 2510 and Saccharonyces so, SHS-20030 (FERM BP-4061) are used. Above, Arthrobacter SP.
- SHS-05 and Saccharomyces SP. SHS-20030, respectively, are in accordance with the Budapest Treaty on the International Recognition of the Deposit of Microorganisms on Patent Rules, and are based on November 2, 1932, to the Institute of Technology No. 4060 (FEBM BF-4060) and No. 4061 (FERM BP-4061) have been deposited.
- microorganisms mentioned above are commonly used for the growth of microorganisms such as glucose, sucrose, molasses, polypeptide, meat extract, and yeast: c-kiss, pork flour, soy flour, phosphoric acid, mugs, and so on. Grow on a medium containing nutrients.
- (Sat) exo-norbornanester is infested with the microbial cells or the treated cells.
- (Sat) exo-bornorbornane-type ester (I) is added directly to the culture solution of the above microorganism so as to have a concentration of 0.5 to 10% and further cultivated.
- the ester is hydrolyzed to obtain norbornane-type alcohol 2S— (II) and norbornane-type ester 2R— (I).
- a liquid extract of a suspended body and a body extract instead of the culture solution of the above K, it is also possible to use a liquid extract of a suspended body and a body extract.
- the cells are collected from the culture by centrifugation, filtration, etc., and suspended in a small mouth liquid containing an organic solvent. More. Bacterial cell extraction is performed by using cell-lysing enzymes or by using ultrasonic, French blessing or other methods commonly used. S can be removed to produce 3 ⁇ 4.
- contacting a microorganism with (soil) exo-norbornan type ester means directly adding (soil) exo-norbornane type ester to the culture solution. place
- contacting a substance means to use a tooth fluid or a cell extract instead of a culture solution.
- reaction scheme a The reaction steps of the above hydrolysis according to the present invention are shown in the following reaction scheme a:
- R, A and B are as defined above.
- 2S— (I) of the exo-norbornan ester was selectively hydrolyzed and the exo-norbornan alcohol was selectively hydrolyzed. 2 Converted to S— (II).
- Norpolnananan ester 2 (I) remains in the reaction (2) almost unreacted.
- a reaction solution containing a mixture of norbornane-type alcohol 2S— (II) and norbornane-type ester 2R— (I) is obtained.
- alcohol 2S- (II) and the exo-norbornane ester 2R- (I) remaining unreacted can be separated by a known method. For example, it is also possible to separate by chromatography. Alternatively, alcohol 2S- (II) may be made water-soluble by a rapid method (eg, by reacting it with an organic acid such as phthalic anhydride to form a half-ester), and then separated by extraction. ffi It is possible to simply obtain the desired optically active norpol-nan-type compound.
- the process of the present invention To the reaction desired: ⁇ ⁇ Add 0.1 to 2 times the appropriate solvent to extract norbornol (1) -12 and norbornyl acetate (1) -11.
- a solvent such as black form, dichloromethan, oxyethyl, and n-hexane may be used alone or as a mixture.
- the extracted norbornene (1) -12 and norrulacetate (1) -11 are appropriately concentrated, and after concentration, 1-2 times the amount of norborneol (1) -12 produced Addition of anhydrides such as maleic anhydride and phthalic anhydride to form a water-soluble adduct of norborneol (I) -12 with an organic acid (such as maleic phthalic acid).
- aqueous solution of a versatile compound such as sodium bicarbonate is added to the reaction mixture to neutralize it.
- the organic acid adduct of norborneol J_Ll »_IL is added to the aqueous layer, and norpornyl acetate is added.
- G is transferred to the organic solvent S.
- Water JS is separated, subjected to alkaline treatment, extracted with an appropriate organic solvent such as dichloromethan, and concentrated to obtain norborneol (1) -12 with high optical purity. .
- the organic solvent layer obtained by separating the aqueous layer from the aqueous layer can be recovered by compressing norpornylacetate (h (-)-1 is a solvent). After recovery, optically pure norborneol (+)-2 can be easily obtained by contacting with a commercially available rivase esterase or chemically deacetylating.
- the (1) exo-norborneol or (10) exo-norborneol obtained in this manner can be obtained by a method described in the literature (Irwin A .. Jones JB: J. Av). . Chen. Soc. 98, 847. 6-8481 (1976)), an optically active substance with higher purity can be easily obtained.
- an optically active substance with higher purity can be easily obtained.
- (1) one or (+)-phenylamine is added to each of them to form each phenylamine clay.
- a high-purity optically active substance containing 98% ee or more can be obtained. Further, it can be purified by a commonly used column chromatography process.
- Acetobacter pasteuri anus ATCC 9432 was prepared in 3 L of GPBY medium (D-Gnorecose 4X. Polypeptone 2X, Meat extract 2X, Yeast) Ex. 2X. First phosphoric acid 0.2X, magnesium sulfide 0.2X, calcium carbonate Vk, pH 7.0), and cultured at 28 for 24 hours. The culture solution is centrifuged at 1.000 G for 10 minutes to remove solids, and then subjected to high-speed eccentric separation at 20.000 G for 15 minutes. »Collect the body, and then» Fill the body with physiological saline. Washed twice. By this operation, 19.8 g of wet cells were obtained.
- GPBY medium D-Gnorecose 4X. Polypeptone 2X, Meat extract 2X, Yeast
- Ex. 2X First phosphoric acid 0.2X, magnesium sulfide 0.2X, calcium carbonate Vk, pH 7.0
- the culture solution is centrifuged at 1.000 G
- the SK body was added to 600 ml of a phosphate buffer (0.1 M, pH 6.5) and suspended, and 12.0 g of (Soil) 1 exo was added to the S3 solution.
- One norbornyl acetate ((Sat) 11) was added, and the mixture was reacted at 30 ° C for 1 hour with stirring.
- the pH of the reaction was kept at 6.5 ⁇ 0.2 by adding small amounts of sodium hydroxide 0.1N. After completion of the reaction, take out the reaction mixture, add the clonal form lnl, and extract the reaction products norborneol (1) -12 and norboler acetate (1) -1 to obtain the gaseous mixture.
- (+) — (1R.2R.4S) exo-norborneol (+) — was detected at 8.5 g / nl and 5.2 og / aU 0.3 ⁇ ag / nl, respectively.
- Toluene was added to this reaction solution, and extraction was performed twice (300 nl, 100 ml). Combining the toluene layer obtained from the two extractions yielded a 38 O BI toluene solution.
- This toluene solution was concentrated to about 50 al, and 4.2 g of maleic anhydride was added to the mixture and the mixture was reacted at 115 for 4 hours. Add 30 l of sodium hydroxide, and stir for 5 minutes.
- the obtained aqueous layer (200 ml) was acidified by adding an acid, extracted with dichloromethane (100), and concentrated to obtain maleic oxide (5.9 g).
- the resulting maleic acid compound was dissolved in methanol (5 Onl), and then 4.0 g of potassium hydroxide dissolved in 50/1 water was added dropwise thereto. The mixture was reacted at room temperature for 30 minutes. After the reaction is completed, add dichloromethane and extract.
- colorless crystals one (IS, 2S, 4B) - Interview click source over Bruno Le Borne per le (1) Yield 2. 8 s of 6 4% was an 2), [ ⁇ ] 2 5 D: - 3.0 1 ° CHC1 3), optical purity 9 0% ee.
- Example 2 The same as in Example 1 from the reaction solution (400 nl) of the cell suspension obtained in the same manner as in Example 1 and (Shi) -exonorubonyl acetate ((Sat) 11) Norvolulacetate and norborneol were extracted with 300 ml of toluene, and the extract was concentrated to about 50 oils. After adding 4% of the acid, the mixture was reacted at 1 15 for 4 hours, then saturated sodium hydrogen carbonate solution (20 Onl) was added, and the mixture was stirred at room temperature for about 5 minutes, and then allowed to stand for 10 minutes.
- the toluene layer and the aqueous layer were separated, and the toluene layer (50, 1 and water) g 20 O nl was obtained, and the obtained aqueous layer 20 O nl was acidified by adding concentrated hydrochloric acid. Then, 100 ml of dichloromethane was added and extracted, and dichloromethane was retained to obtain 7.3 g of a monoester of phthalic acid. Add 75 ml of ester After dissolving with chilled solution, 3.4 g of (1-)-X-ethyleneamine was added dropwise to obtain 9.0 g of monoesteramine phthalate monohydrate.
- Example 1 The toluene layer 5 Onl obtained in Example 1 was depressurized under reduced pressure to obtain 4.9 g of oil-like norpolluacetate (1) -11. This norbornyl acetate is dissolved in 5 Oal of methanol, 50% of 8% sodium hydroxide is added dropwise, and the mixture is reacted at 50 for 2 hours. Extracted with tan. The obtained extract was decompressed * boxed and crystallized. 3.1 g of (+)-(1R.2E.4S) hexanoloneborneol (+)-2 was converted to colorless crystals. I got it. Yield 71%. Optical purity 95% ee or more.
- Example 1 One liter of the GPBY medium IB-coated in Example 1 was placed in a 2 L miniature fermenter, inoculated with Acetobacter oasteurianus ATCC 9432, and cultured at 30 for 24 hours. After the cultivation, 10.0 g of (saturated) sodium porunyl acetate was added, and cultivation was performed for 4 hours. To this culture solution was added a 400: 1 mouth form, extracted, and the extract was subjected to gas chromatography to measure the content of the compound contained.
- Norpornyl acetate 1 0.3 ng / ik (-) 1 (IS.2S.4R) 1-norbornolneol (1) 1 26.2 iig / nU and (10) 1 (1R.2R.4S ) ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ (+) 2 1 0.5 B g / ffll.
- the KBYt GPBY medium 50 strain I prepared in Example 1 was sterilized by placing it in a 50 On 1 volume flask, inoculated with the living organisms shown in Table 1, and cultured at 30 for 24 hours. To this culture was added (soil) exo-ethanol acetate 500 and sealed with a rubber stopper. Thereafter, the cells were cultured for 16 hours.
- Table 1 shows the results obtained by analyzing the norbornyl acetate and noreborneol, which have been cultivated by gas chromatography, in the same manner as J1.
- Example 2 One liter of the GPBY medium described in Example 1 was placed in a 2 liter mini-farmer overnight, and Pseudo agriculture onas aeruginosa iFO 12582 and Saccharoayces so.SHS-20030 (FERM BP-4061) were added. Each was contacted and cultured at 30 for 24 hours. Each culture was harvested and washed by centrifugation as described in S3 in Example 1, and the ⁇ 7.0 was adjusted to 0.0 so that the optical density of each cell (Optical Density: 660 ⁇ ) became 10%. The suspension was suspended in 5 ml of a solution of purine acid.
- This bacterium is a gram-positive bacillus, and its shape and size vary widely. Young cultivation tobacco (grass agar medium, culture for 30 to 8 to 12 hours) forms rods 1.0-1.1 x 3.0-4.0 mm in size, but as culture proceeds, the bacteria become shorter (grass agar). Medium, culture for 30 to 48 hours at 30>, and when the culture enters the arrest period, it becomes spherical (1.0-1. LK broth agar medium, culture for 72-96 hours at 30). No motility is observed.
- Meat juice static S culture (cultured for 30 days at 30): Culture: It grows thickly on the surface layer, grows moderately over the entire narrow area, and has a very small amount of sediment *. No particular feeling is observed.
- the growth temperature is 10-37.
- the optimal growth temperature is 24-32 (peptone water).
- Heat resistance 63 in skim milk, not viable in 30 minutes.
- Cell wall composition Beso-MP (Beso-Diaminobimerin II) is not easily detected.
- Acid production D—Glucose, galactose, D—Mannose, sucrose, trehalose, fructose (weak), and mannit (weak) produce acids, but L-arabinose, D -Almost no acid formation from xylose, and no acid formation from lactose, ribose, sorbose, ramnose, l / sitol, cellobiose and maltose.
- Bacterial form The book is a spherical or circular 3.5-4.5 X 5-6 ⁇ B yeast » which grows mainly by budding. Budding is multipolarly observed from the cell surface (malt extract agar medium, 28, 3 cell culture) o No hyphae.
- Spores Slightly oval spores are formed from 1 to 4 spheres in cells (Gorodokowa agar medium, cultured for 28, 10 days).
- Glucose, galactose, sucrose, maltose, and raffinose are assimilated and fermentable, but lactose, cellobiose, Starch is both assimilated and fermented! No.
- the post-reaction treatment was carried out in exactly the same manner as in Reference Example 1 using (1) -1 (IS.2S, 4R) -exonorborneol obtained in Example 2.
- the crude product is made into sugar by low-pressure distillation, and Z 3-4 m seismic Hg fraction with boiling range 74-86 is collected and the desired (+)-exo 3 — (2-pro Diphenyl) -bicyclo [2.2,1] heptane 1-2-on was obtained.
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
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Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51000893A JP3231325B2 (ja) | 1991-12-06 | 1992-12-04 | 光学活性ノルボルネオールの製造方法 |
DE69226942T DE69226942T2 (de) | 1991-12-06 | 1992-12-04 | Verfahren zur herstellung von optisch aktivem norborneol |
KR1019930702312A KR100260542B1 (ko) | 1991-12-06 | 1992-12-04 | 광학활성 노르보르네올의 제조방법 |
US08/098,403 US5459067A (en) | 1991-12-06 | 1992-12-04 | Method for producing optically active norborneol by ester hydrolysis |
EP92924879A EP0570593B1 (en) | 1991-12-06 | 1992-12-04 | Process for producing optically active norborneol |
AU30947/92A AU655698B2 (en) | 1991-12-06 | 1992-12-04 | Process for producing optically active norborneol |
DK92924879T DK0570593T3 (da) | 1991-12-06 | 1992-12-04 | Fremgangsmåde til fremstilling af optisk aktivt norborneol |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34970591 | 1991-12-06 | ||
JP3/349705 | 1991-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993011256A1 true WO1993011256A1 (fr) | 1993-06-10 |
Family
ID=18405549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/001588 WO1993011256A1 (fr) | 1991-12-06 | 1992-12-04 | Procede de production d'un norborneol presentant une activite optique |
Country Status (12)
Country | Link |
---|---|
US (1) | US5459067A (ja) |
EP (1) | EP0570593B1 (ja) |
JP (1) | JP3231325B2 (ja) |
KR (1) | KR100260542B1 (ja) |
AT (1) | ATE170926T1 (ja) |
AU (1) | AU655698B2 (ja) |
CA (1) | CA2101945C (ja) |
DE (1) | DE69226942T2 (ja) |
DK (1) | DK0570593T3 (ja) |
ES (1) | ES2120454T3 (ja) |
NZ (1) | NZ246087A (ja) |
WO (1) | WO1993011256A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3431204B2 (ja) * | 1993-04-22 | 2003-07-28 | 塩野義製薬株式会社 | ノルボルナン型エステル・ヒドロラーゼ |
JP3610600B2 (ja) * | 1994-08-22 | 2005-01-12 | チッソ株式会社 | 光学活性エンド−2−ノルボルネオール類の製造方法 |
JP3506575B2 (ja) * | 1996-12-27 | 2004-03-15 | 富士通株式会社 | 第3級アルコールエステルの調製方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2844224B2 (ja) * | 1989-10-09 | 1999-01-06 | チッソ株式会社 | 光学活性モノエステル化合物およびその製造法 |
WO1991007501A1 (en) * | 1989-11-13 | 1991-05-30 | Pfizer Inc. | Enzymatic resolution of endo-bicyclo[2.2.1]heptan-2-ol and derived pharmaceutical agents |
-
1992
- 1992-12-04 EP EP92924879A patent/EP0570593B1/en not_active Expired - Lifetime
- 1992-12-04 DE DE69226942T patent/DE69226942T2/de not_active Expired - Fee Related
- 1992-12-04 DK DK92924879T patent/DK0570593T3/da active
- 1992-12-04 KR KR1019930702312A patent/KR100260542B1/ko not_active IP Right Cessation
- 1992-12-04 JP JP51000893A patent/JP3231325B2/ja not_active Expired - Fee Related
- 1992-12-04 NZ NZ246087A patent/NZ246087A/en not_active IP Right Cessation
- 1992-12-04 AU AU30947/92A patent/AU655698B2/en not_active Ceased
- 1992-12-04 AT AT92924879T patent/ATE170926T1/de not_active IP Right Cessation
- 1992-12-04 WO PCT/JP1992/001588 patent/WO1993011256A1/ja active IP Right Grant
- 1992-12-04 CA CA002101945A patent/CA2101945C/en not_active Expired - Fee Related
- 1992-12-04 ES ES92924879T patent/ES2120454T3/es not_active Expired - Lifetime
- 1992-12-04 US US08/098,403 patent/US5459067A/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
Tetrahedron, Vol. 43, No. 17, 1987, OBERHAUSER, T. et al., "Enzymic Resolution of Norborhane-Type Esters", p. 3931-3944. * |
Tetrahedron, Vol. 46, No. 12, 1990, RABILLER, C.G. et al., "Enzymic Recognition of Diastereomeric Esters", p. 4231-4240. * |
Also Published As
Publication number | Publication date |
---|---|
CA2101945A1 (en) | 1993-06-07 |
AU3094792A (en) | 1993-06-28 |
NZ246087A (en) | 1995-04-27 |
CA2101945C (en) | 1999-01-05 |
EP0570593A1 (en) | 1993-11-24 |
DE69226942T2 (de) | 1999-05-20 |
ES2120454T3 (es) | 1998-11-01 |
KR100260542B1 (ko) | 2000-07-01 |
JP3231325B2 (ja) | 2001-11-19 |
DE69226942D1 (de) | 1998-10-15 |
EP0570593A4 (en) | 1995-06-14 |
US5459067A (en) | 1995-10-17 |
EP0570593B1 (en) | 1998-09-09 |
DK0570593T3 (da) | 1999-02-15 |
ATE170926T1 (de) | 1998-09-15 |
AU655698B2 (en) | 1995-01-05 |
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