| 发明名称 |
PROCESS FOR PREPARING 14 ALPHA-HYDROXY-STEROIDS |
| 摘要 |
1 alpha -Oxysteroid of the formula <IMAGE> wherein R1 is methyl or ethyl, R2 and R3 each are hydrogen or alkanoyl of 1-8 carbon atoms, and R4 is hydrogen or hydrocarbon of 1-4 carbon atoms, ARE PROGESTESTIONALLY ACTIVE AND USEFUL IN ORAL CONTRACEPTIVE AND MENOPAUSAL COMPOSITIONS. |
| 申请公布号 |
HU171837(B) |
申请公布日期 |
1978.03.28 |
| 申请号 |
HU1975SC00541 |
申请日期 |
1975.10.17 |
| 申请人 |
SCHERING AG,DE - WB |
发明人 |
PETZOLDT,KARL,WB;ELGER,WALTER,WB |
| 分类号 |
A61K31/56;C07J1/00;C12P33/00;C12P33/06 |
主分类号 |
A61K31/56 |
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