| 发明名称 |
Process for the preparation of pure finasteride |
| 摘要 |
The present invention relates to an improved process for the preparation of pure Finasteride of Formula I, which comprises converting dihydrofinasteride to finasteride through novel protected dihydrofinasteride and protected finasteride intermediates.
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| 申请公布号 |
US2006084671(A1) |
申请公布日期 |
2006.04.20 |
| 申请号 |
US20050252860 |
申请日期 |
2005.10.18 |
| 申请人 |
DANDALA RAMESH;RAO DIVVELA V;PRABAHAR KOILPILLAI J;RAO GOLLAPALLI V;SIVAKUMARAN MEENAKSHISUNDERAM |
发明人 |
DANDALA RAMESH;RAO DIVVELA V.;PRABAHAR KOILPILLAI J.;RAO GOLLAPALLI V.;SIVAKUMARAN MEENAKSHISUNDERAM |
| 分类号 |
C07D221/18;A61K31/473 |
主分类号 |
C07D221/18 |
| 代理机构 |
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