发明名称 |
Process for preparing alkanesulfonyl pyridines. |
摘要 |
A process for preparing alkanesulfonyl pyridines of the formula 1: <CHEM> is disclosed, wherein R<1> is as defined herein. A bromine-magnesium exchange is performed on 2,5-dibromopyridine followed by treatment with a sulfonylating reagent. The compounds of formula 1 are useful in the preparation of pyridyl-substituted pyrazoles used in the treatment and alleviation of inflammation and other inflammation associated disorders. |
申请公布号 |
ZA200207740(B) |
申请公布日期 |
2004.03.26 |
申请号 |
ZA20020007740 |
申请日期 |
2002.09.26 |
申请人 |
PFIZER PRODUCTS INC. |
发明人 |
JOLANTA NOWAKOWSKI;HAAG, DIETER, CHRISTIAN |
分类号 |
C07D213/70;C07D213/71;C07D213/72;C07D213/73;C07D213/77;C07D401/04 |
主分类号 |
C07D213/70 |
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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