发明名称 |
Verfahren zur Herstellung von 3-pyridylsulphonylpyrazolo[4,3-d]pyrimidin-7-one und Zwischenprodukte |
摘要 |
<p>A process is provided for the preparation of compounds of formula (I) herein comprising reacting a compound of formula (II), (III) or (IV) in the presence of <->OR and a hydroxide trapping agent or in the case of compounds of formula (IV) reacting in the presence of an auxiliary base and a hydroxide trapping agent (i.e. <->OR is substituted by the auxiliary base), wherein X is a leaving group and R<1> to R<4> are as defined above.</p> |
申请公布号 |
DE60017330(D1) |
申请公布日期 |
2005.02.17 |
申请号 |
DE2000617330 |
申请日期 |
2000.10.10 |
申请人 |
PFIZER INC., NEW YORK |
发明人 |
DEVRIES, KEITH MICHAEL;LEVETT, PHILIP CHARLES;NEGRI, JOANNA TERESA;WOOD, ALBERT SHAW |
分类号 |
A61K;C07D;C07D213/83;C07D401/12;C07D401/14;C07D487/04;(IPC1-7):C07D487/04 |
主分类号 |
A61K |
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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