| 发明名称 |
PROCESS FOR THE PREPARATION OF 1-METHYLINDAZOLE-3-CARBOXYLIC ACID |
| 摘要 |
A process for the preparation of a compound of formula (I): <IMG> (I) which comprises the reaction of a methylating agent with a compound of formula (IV): <IMG> (IV) in a non-aqueous polar solvent in which is dissolved an alkali metal alkoxide, in an inert atmosphere.
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| 申请公布号 |
CA1336713(C) |
申请公布日期 |
1995.08.15 |
| 申请号 |
CA19880586405 |
申请日期 |
1988.12.20 |
| 申请人 |
BEECHAM GROUP P.L.C. |
发明人 |
KING, FRANCIS DAVID;RAMSAY, THOMAS WEIR |
| 分类号 |
C07D231/56;C07D451/14;(IPC1-7):C07D231/56 |
主分类号 |
C07D231/56 |
| 代理机构 |
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