发明名称 |
PROCEDE POUR LA PREPARATION DE DERIVES DE PYRAZOLO [4,3-D] PYRIMIDINE-7-ONE-3-PYRIDYLSULFONYLE, ET INTERMEDIAIRES UTILISES |
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 |
MA25867(A1) |
申请公布日期 |
2003.10.01 |
申请号 |
MA20000026085 |
申请日期 |
2000.10.10 |
申请人 |
PFIZER INC. |
发明人 |
KEITH MICHAEL DEVRIES;JOANNA TERESA NEGRI;PHILIP CHARLES LEVETT;ALBERT SHAW WOOD |
分类号 |
A61K;C07D;C07D213/83;C07D401/12;C07D401/14;C07D487/04;(IPC1-7):C07D239/70 |
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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