CS271347B2 - Method of 4-androstene-3,17-dione and 1,4-androstadiene-3,17-diene production - Google Patents
Method of 4-androstene-3,17-dione and 1,4-androstadiene-3,17-diene production Download PDFInfo
- Publication number
- CS271347B2 CS271347B2 CS869282A CS928286A CS271347B2 CS 271347 B2 CS271347 B2 CS 271347B2 CS 869282 A CS869282 A CS 869282A CS 928286 A CS928286 A CS 928286A CS 271347 B2 CS271347 B2 CS 271347B2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- dione
- androstadiene
- nrrl
- androstene
- mycobacterium
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- AEMFNILZOJDQLW-QAGGRKNESA-N androst-4-ene-3,17-dione Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1 AEMFNILZOJDQLW-QAGGRKNESA-N 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 4
- 229960005471 androstenedione Drugs 0.000 title claims description 9
- AEMFNILZOJDQLW-UHFFFAOYSA-N androstenedione Natural products O=C1CCC2(C)C3CCC(C)(C(CC4)=O)C4C3CCC2=C1 AEMFNILZOJDQLW-UHFFFAOYSA-N 0.000 title claims description 9
- 244000005700 microbiome Species 0.000 claims abstract description 15
- LUJVUUWNAPIQQI-UHFFFAOYSA-N (+)-androsta-1,4-diene-3,17-dione Natural products O=C1C=CC2(C)C3CCC(C)(C(CC4)=O)C4C3CCC2=C1 LUJVUUWNAPIQQI-UHFFFAOYSA-N 0.000 claims description 9
- LUJVUUWNAPIQQI-QAGGRKNESA-N androsta-1,4-diene-3,17-dione Chemical compound O=C1C=C[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1 LUJVUUWNAPIQQI-QAGGRKNESA-N 0.000 claims description 9
- 125000002328 sterol group Chemical group 0.000 claims description 7
- 241000186359 Mycobacterium Species 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 230000000593 degrading effect Effects 0.000 claims description 4
- -1 lnnn-5 Chemical compound 0.000 claims description 2
- OSVMTWJCGUFAOD-KZQROQTASA-N formestane Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CCC2=C1O OSVMTWJCGUFAOD-KZQROQTASA-N 0.000 claims 3
- DCIFNKCWKJGATM-CDJYOOERSA-N (9r,10s,13s)-10,13-dimethyl-2,4,5,6,7,9,11,12-octahydro-1h-cyclopenta[a]phenanthrene-3,17-dione Chemical compound C1C(=O)CC[C@]2(C)[C@H]3CC[C@](C)(C(C=C4)=O)C4=C3CCC21 DCIFNKCWKJGATM-CDJYOOERSA-N 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 229950005143 sitosterol Drugs 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 241000187488 Mycobacterium sp. Species 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 6
- 238000006731 degradation reaction Methods 0.000 description 6
- 239000003995 emulsifying agent Substances 0.000 description 6
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 6
- LPZCCMIISIBREI-MTFRKTCUSA-N Citrostadienol Natural products CC=C(CC[C@@H](C)[C@H]1CC[C@H]2C3=CC[C@H]4[C@H](C)[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)C(C)C LPZCCMIISIBREI-MTFRKTCUSA-N 0.000 description 5
- 241000187481 Mycobacterium phlei Species 0.000 description 5
- 229940055036 mycobacterium phlei Drugs 0.000 description 5
- 150000003431 steroids Chemical class 0.000 description 5
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- LGJMUZUPVCAVPU-UHFFFAOYSA-N beta-Sitostanol Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(C)CCC(CC)C(C)C)C1(C)CC2 LGJMUZUPVCAVPU-UHFFFAOYSA-N 0.000 description 4
- NJKOMDUNNDKEAI-UHFFFAOYSA-N beta-sitosterol Natural products CCC(CCC(C)C1CCC2(C)C3CC=C4CC(O)CCC4C3CCC12C)C(C)C NJKOMDUNNDKEAI-UHFFFAOYSA-N 0.000 description 4
- KZJWDPNRJALLNS-VJSFXXLFSA-N sitosterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CC[C@@H](CC)C(C)C)[C@@]1(C)CC2 KZJWDPNRJALLNS-VJSFXXLFSA-N 0.000 description 4
- KZJWDPNRJALLNS-VPUBHVLGSA-N (-)-beta-Sitosterol Natural products O[C@@H]1CC=2[C@@](C)([C@@H]3[C@H]([C@H]4[C@@](C)([C@H]([C@H](CC[C@@H](C(C)C)CC)C)CC4)CC3)CC=2)CC1 KZJWDPNRJALLNS-VPUBHVLGSA-N 0.000 description 3
- CSVWWLUMXNHWSU-UHFFFAOYSA-N (22E)-(24xi)-24-ethyl-5alpha-cholest-22-en-3beta-ol Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(C)C=CC(CC)C(C)C)C1(C)CC2 CSVWWLUMXNHWSU-UHFFFAOYSA-N 0.000 description 3
- KLEXDBGYSOIREE-UHFFFAOYSA-N 24xi-n-propylcholesterol Natural products C1C=C2CC(O)CCC2(C)C2C1C1CCC(C(C)CCC(CCC)C(C)C)C1(C)CC2 KLEXDBGYSOIREE-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 3
- ARVGMISWLZPBCH-UHFFFAOYSA-N Dehydro-beta-sitosterol Natural products C1C(O)CCC2(C)C(CCC3(C(C(C)CCC(CC)C(C)C)CCC33)C)C3=CC=C21 ARVGMISWLZPBCH-UHFFFAOYSA-N 0.000 description 3
- 241000186365 Mycobacterium fortuitum Species 0.000 description 3
- 241000187480 Mycobacterium smegmatis Species 0.000 description 3
- 241000586779 Protaminobacter Species 0.000 description 3
- 241000187747 Streptomyces Species 0.000 description 3
- MJVXAPPOFPTTCA-UHFFFAOYSA-N beta-Sistosterol Natural products CCC(CCC(C)C1CCC2C3CC=C4C(C)C(O)CCC4(C)C3CCC12C)C(C)C MJVXAPPOFPTTCA-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 229920000136 polysorbate Polymers 0.000 description 3
- 235000015500 sitosterol Nutrition 0.000 description 3
- NLQLSVXGSXCXFE-UHFFFAOYSA-N sitosterol Natural products CC=C(/CCC(C)C1CC2C3=CCC4C(C)C(O)CCC4(C)C3CCC2(C)C1)C(C)C NLQLSVXGSXCXFE-UHFFFAOYSA-N 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- LPZCCMIISIBREI-JXMPMKKESA-N (Z)-24-ethylidenelophenol Chemical compound C[C@@H]1[C@@H](O)CC[C@]2(C)[C@@H](CC[C@@]3([C@@H]([C@H](C)CC/C(=C/C)C(C)C)CC[C@H]33)C)C3=CC[C@H]21 LPZCCMIISIBREI-JXMPMKKESA-N 0.000 description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241001467578 Microbacterium Species 0.000 description 2
- 229930182558 Sterol Natural products 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 150000003432 sterols Chemical class 0.000 description 2
- 235000003702 sterols Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- 241000186063 Arthrobacter Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000186146 Brevibacterium Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 241000186367 Mycobacterium avium Species 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 235000019764 Soybean Meal Nutrition 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 229940076810 beta sitosterol Drugs 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229940041514 candida albicans extract Drugs 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 238000005805 hydroxylation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000003798 microbiological reaction Methods 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010898 silica gel chromatography Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004455 soybean meal Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000012138 yeast extract Substances 0.000 description 1
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
- C12P33/00—Preparation of steroids
- C12P33/005—Degradation of the lateral chains at position 17
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Steroid Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853544662 DE3544662A1 (de) | 1985-12-13 | 1985-12-13 | Verfahren zur herstellung von 4-androsten-3,17-dion und 1,4-androstadien-3,17-dion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS928286A2 CS928286A2 (en) | 1990-02-12 |
| CS271347B2 true CS271347B2 (en) | 1990-09-12 |
Family
ID=6288680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS869282A CS271347B2 (en) | 1985-12-13 | 1986-12-12 | Method of 4-androstene-3,17-dione and 1,4-androstadiene-3,17-diene production |
Country Status (17)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6071714A (en) * | 1998-03-26 | 2000-06-06 | Forbes Medi-Tech, Inc. | Process for the microbial conversion of phytosterols to androstenedione and androstadienedione |
| KR100422161B1 (ko) * | 2001-05-11 | 2004-03-10 | (주)유진사이언스 | 4-안드로스텐-3,17-디온 및안드로스타-1,4-디엔-3,17-디온의 제조 방법 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4826549B1 (enrdf_load_stackoverflow) * | 1968-11-14 | 1973-08-11 | ||
| US3684657A (en) * | 1970-05-11 | 1972-08-15 | Searle & Co | Selective microbiological degradation of steroidal 17-alkyls |
| US3759791A (en) * | 1970-12-10 | 1973-09-18 | Searle & Co | Selective microbiological preparation of androst-4-ene-3,17-dione |
| JPS512670Y2 (enrdf_load_stackoverflow) * | 1971-06-28 | 1976-01-26 | ||
| DE2703645C3 (de) * | 1976-03-01 | 1981-11-12 | The Upjohn Co., 49001 Kalamazoo, Mich. | Verfahren zur Herstellung eines Gemischs aus Androsta-1,4-dien-3,17-dion und Androst-4-en-3,17-dion |
| US4293645A (en) * | 1976-03-01 | 1981-10-06 | The Upjohn Company | Process for preparing androsta-1,4-diene-3,17-dione and androst-4-ene-3,17-dione |
| JPS52115548A (en) * | 1976-03-24 | 1977-09-28 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioning system |
-
1985
- 1985-12-13 DE DE19853544662 patent/DE3544662A1/de not_active Withdrawn
-
1986
- 1986-12-09 WO PCT/DE1986/000508 patent/WO1987003620A1/de active Application Filing
- 1986-12-09 DE DE86730207T patent/DE3682379D1/de not_active Expired - Fee Related
- 1986-12-09 ES ES198686730207T patent/ES2038601T3/es not_active Expired - Lifetime
- 1986-12-09 FI FI873489A patent/FI873489A7/fi not_active IP Right Cessation
- 1986-12-09 AU AU67728/87A patent/AU6772887A/en not_active Abandoned
- 1986-12-09 JP JP62500101A patent/JPH0720439B2/ja not_active Expired - Lifetime
- 1986-12-09 HU HU86458A patent/HUT44082A/hu unknown
- 1986-12-09 AT AT86730207T patent/ATE69268T1/de not_active IP Right Cessation
- 1986-12-09 EP EP86730207A patent/EP0227588B1/de not_active Expired - Lifetime
- 1986-12-12 CS CS869282A patent/CS271347B2/cs not_active IP Right Cessation
- 1986-12-12 DD DD86297530A patent/DD254025A5/de not_active IP Right Cessation
- 1986-12-12 CA CA000525244A patent/CA1302923C/en not_active Expired - Lifetime
-
1987
- 1987-07-07 BG BG080473A patent/BG50613A3/xx unknown
- 1987-08-10 SU SU4203113A patent/SU1679977A3/ru active
- 1987-08-12 DK DK419587A patent/DK419587A/da not_active Application Discontinuation
- 1987-08-12 NO NO873381A patent/NO873381L/no unknown
-
1992
- 1992-01-23 GR GR910402032T patent/GR3003640T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK419587D0 (da) | 1987-08-12 |
| WO1987003620A1 (fr) | 1987-06-18 |
| AU6772887A (en) | 1987-06-30 |
| JPS63501922A (ja) | 1988-08-04 |
| BG50613A3 (bg) | 1992-09-15 |
| NO873381D0 (no) | 1987-08-12 |
| EP0227588A1 (de) | 1987-07-01 |
| CA1302923C (en) | 1992-06-09 |
| DE3544662A1 (de) | 1987-06-19 |
| NO873381L (no) | 1987-08-12 |
| ES2038601T3 (es) | 1993-08-01 |
| EP0227588B1 (de) | 1991-11-06 |
| DK419587A (da) | 1987-08-12 |
| CS928286A2 (en) | 1990-02-12 |
| DE3682379D1 (enrdf_load_stackoverflow) | 1991-12-12 |
| ATE69268T1 (de) | 1991-11-15 |
| GR3003640T3 (enrdf_load_stackoverflow) | 1993-03-16 |
| SU1679977A3 (ru) | 1991-09-23 |
| DD254025A5 (de) | 1988-02-10 |
| FI873489A0 (fi) | 1987-08-11 |
| FI873489L (fi) | 1987-08-11 |
| HUT44082A (en) | 1988-01-28 |
| FI873489A7 (fi) | 1987-08-11 |
| JPH0720439B2 (ja) | 1995-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH627190A5 (enrdf_load_stackoverflow) | ||
| US5516649A (en) | Process for the production of 4-androstene-3,17-dione and 1,4-androstadiene-3,17-dione from ergosterol with mycobacterium | |
| IE44515B1 (en) | Process for the manufacture of 4-androstene-3,17-dione derivatives | |
| US4839282A (en) | Preparation of 3-oxo-Δ1,4 -steroids | |
| US5418145A (en) | Process for the preparation of 4-androstene-3,17-dione and 1,4-androstadiene-3,17-dione | |
| CS271347B2 (en) | Method of 4-androstene-3,17-dione and 1,4-androstadiene-3,17-diene production | |
| US4431732A (en) | Process for the preparation of 11β,21-dihydroxy-2'-methyl-5'βH-1,4-pregnadieno(16,17-D)-oxazole-3,20-dione | |
| Tamm | Conversion of natural substances by microbial enzymes | |
| JP3034602B2 (ja) | ４―プレグネン―３，２０―ジオン及びその誘導体の製法 | |
| US3801460A (en) | Simultaneous steroid oxygenation and 1-dehydrogenation with bacillus cereus | |
| US5472854A (en) | Process for the production of 17-oxosteroids via the fermentative oxidation of 17β-hydroxysteroids by Mycobacterium | |
| RU2082762C1 (ru) | Способ получения 17-оксостероидов | |
| US4100026A (en) | Process for the preparation of 4-androstene-3,17-dione derivatives | |
| IE47691B1 (en) | Process for the manufacture of 21-hydroxy-20-methylpregnane derivatives | |
| WO1996012034A1 (en) | A microbiological process for the preparation of 17beta-carboxy substituted 3-oxo-4-azasteroids and the use of such products as inhibitors of the enzyme 5alpha-reductase | |
| WO1987005940A1 (fr) | PROCEDE POUR LA PRODUCTION DE 17aalpha-HYDROXY-D-HOMO-1,4-PREGNADIENE-3,20-DIONE | |
| DE2558089A1 (de) | Verfahren zur herstellung von androstan-3,17-dion-derivaten | |
| CS200518B2 (cs) | Způsob výroby androslanových derivátů |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| IF00 | In force as of 2000-06-30 in czech republic | ||
| MK4A | Patent expired |
Effective date: 20011212 |