| 发明名称 |
Process for preparing sildenafil |
| 摘要 |
<p>A process for the preparation of a compound of formula (I): also known as sildenafil which comprises cyclisation of a compound of formula (II): wherein the cyclisation is conducted under neutral or basic conditions.</p> |
| 申请公布号 |
SK283895(B6) |
申请公布日期 |
2004.04.06 |
| 申请号 |
SK20010001784 |
申请日期 |
1997.06.10 |
| 申请人 |
PFIZER RESEARCH AND DEVELOPMENT COMPANY N. V./S. A. |
发明人 |
DUNN PETER JAMES;WOOD ALBERT SHAW |
| 分类号 |
C07D295/22;A61K31/00;A61K31/505;A61K31/519;A61K31/635;A61P13/02;A61P15/00;A61P15/10;C07B61/00;C07D;C07D231/14;C07D231/40;C07D295/26;C07D403/12;C07D487/04;(IPC1-7):C07D487/04 |
主分类号 |
C07D295/22 |
| 代理机构 |
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代理人 |
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