| 发明名称 |
5-(4-ETHYL-1-PIPERAZINYLSULPHONYL)2-SUBSTITUTED BENZOIC ACIDS |
| 摘要 |
A process is provided for the preparation of a compound of formulae (IA) (sidenafil/ ViagraTm TM ) and (IB) <CHEM> comprising reacting a compound of formula (IIA) and (IIB) respectively in the presence of <->OR, wherein R in the case of formation of compound (IA) is CH2CH3 and R in the case of formation of compound (IB) is CH2CH2CH3, where X is a leaving group: <CHEM> |
| 申请公布号 |
IL152924(A) |
申请公布日期 |
2004.02.19 |
| 申请号 |
IL19990152924 |
申请日期 |
1999.10.07 |
| 申请人 |
PFIZER RESEARCH AND DEVELOPMENT COMPANY, N.V. / S.A. |
发明人 |
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| 分类号 |
C07D;C07D295/21;C07D295/30;C07D487/04;(IPC1-7):C07D295/30 |
主分类号 |
C07D |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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