GB1327910A - 2alpha-methyl-17beta-cyclopentyloxy-5alpha-androstan- 3-one - Google Patents
2alpha-methyl-17beta-cyclopentyloxy-5alpha-androstan- 3-oneInfo
- Publication number
- GB1327910A GB1327910A GB1671872A GB1671872A GB1327910A GB 1327910 A GB1327910 A GB 1327910A GB 1671872 A GB1671872 A GB 1671872A GB 1671872 A GB1671872 A GB 1671872A GB 1327910 A GB1327910 A GB 1327910A
- Authority
- GB
- United Kingdom
- Prior art keywords
- androstan
- cyclopentyloxy
- methyl
- 2alpha
- 5alpha
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J51/00—Normal steroids with unmodified cyclopenta(a)hydrophenanthrene skeleton not provided for in groups C07J1/00 - C07J43/00
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Steroid Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
1327910 2α - Methyl - 17# - cyclopentyloxy-5α- androstan-3-one SYNTEX CORP 11 April 1972 [20 April 1971] 16718/72 Heading C2U The novel title steroid is prepared from the corresponding 17#-ol and cyclopentyl bromide or by reacting 5α-androstan-17#-ol-3-one with cyclopentyl bromide to give 17#-cyclopentyloxy- 5α-androstan-3-one, treating this with ethyl formate in the presence of a base to give 2- hydroxymethylene - 17# - cyclopentyloxy - 5α- androstan-3-one and then catalytically hydrogenating this. The reactions with cyclopentyl bromide are effected in organic liquid reaction media and in the presence of sodium hydride or silver carbonate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13574371A | 1971-04-20 | 1971-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1327910A true GB1327910A (en) | 1973-08-22 |
Family
ID=22469460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1671872A Expired GB1327910A (en) | 1971-04-20 | 1972-04-11 | 2alpha-methyl-17beta-cyclopentyloxy-5alpha-androstan- 3-one |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2217965C3 (en) |
FR (1) | FR2133901B1 (en) |
GB (1) | GB1327910A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4297350A (en) * | 1978-10-10 | 1981-10-27 | The Upjohn Company | Male contraceptive steroids and methods of use |
-
1972
- 1972-04-11 GB GB1671872A patent/GB1327910A/en not_active Expired
- 1972-04-14 DE DE19722217965 patent/DE2217965C3/en not_active Expired
- 1972-04-19 FR FR7213811A patent/FR2133901B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2133901A1 (en) | 1972-12-01 |
DE2217965A1 (en) | 1972-10-26 |
DE2217965C3 (en) | 1974-07-25 |
FR2133901B1 (en) | 1975-06-20 |
DE2217965B2 (en) | 1974-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1284348A (en) | Process for the manufacture of hexamethylenediamine | |
GB1394804A (en) | Process for the production of metal alkoxides | |
GB1401023A (en) | Hydrotreatment of asphaltene-containing hydrocarbon feeds | |
GB558294A (en) | Catalysts and the preparation thereof | |
GB1369185A (en) | Process for the production of fructose | |
GB1494664A (en) | Hydrogenation of hydrocarbons and hydrocarbon polymers containing aliphatic unsaturation | |
GB1327910A (en) | 2alpha-methyl-17beta-cyclopentyloxy-5alpha-androstan- 3-one | |
CA942749A (en) | Production of tertiary acetylene glycols by reaction of acetylene with ketones | |
GB1393592A (en) | Combination reforming process | |
GB1320188A (en) | Hydrogenolysis of substituted tetrahydropyrans | |
GB1344574A (en) | Aromatic amines | |
ES413408A1 (en) | Isomalite manufacturing procedure. (Machine-translation by Google Translate, not legally binding) | |
GB1369640A (en) | Method of activating silver catalysts | |
GB1343469A (en) | Process for preparing unsaturated compounds | |
GB1460207A (en) | Process for the preparation of 2-methylpropane-1,3-diol | |
ES389955A1 (en) | A process for the preparation of c-substitute pyridine and/or hydrogenated c-substitute pyridine. (Machine-translation by Google Translate, not legally binding) | |
GB1335138A (en) | Method of producing alkylidene-substituted norbornenes | |
ES402244A1 (en) | Process for the production of dichloroacetoxypropane | |
GB1384796A (en) | Process for the production of 3,4-unsaturated nitriles | |
GB1177845A (en) | New Process for the Preparation of delta<5(10)>-3-Keto-19-Nor-Steroids | |
GB1409421A (en) | Gold compounds | |
GB1382738A (en) | Process for producing diaminomaleonitrile | |
GB1003578A (en) | Process for the manufacture of hydroxymethylcyclododecane | |
GB1324613A (en) | Epoxy estranes and process for their preparation | |
GB1285409A (en) | Catalytic conversion of 3-carene |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |