| 发明名称 |
Process for preparing substituted 4-methylidenecinnamic acid derivatives |
| 摘要 |
A process for preparing substituted 4-methylidenecinnamic acid derivatives of Formula (I). <IMAGE> (I) The variables are defined herein. The compounds of Formula (I) can be used, for example, as UV absorbers.
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| 申请公布号 |
US5639883(A) |
申请公布日期 |
1997.06.17 |
| 申请号 |
US19950487093 |
申请日期 |
1995.06.06 |
| 申请人 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
发明人 |
POETSCH, EIKE;MEYER, VOLKER;HEYWANG, ULRICH;STEIN, INGE;SCHWARZ, MICHAEL;KOMPTER, MICHAEL |
| 分类号 |
A61K8/35;A61K8/37;A61K8/49;A61Q17/04;B01J31/24;C07C69/738;(IPC1-7):C07D453/02 |
主分类号 |
A61K8/35 |
| 代理机构 |
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