| 发明名称 |
PROCESS FOR THE PREPARATION OF IMIDAZOTHIAZOLONE DERIVATIVES |
| 摘要 |
The invention relates to a novel process for the preparation of imidazothiazolone derivatives of formula I, wherein R1, R2, R3 and R4 are as defined in the claims, which are suitable for the preparation of D-(+)-biotin.
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| 申请公布号 |
US5233045(A) |
申请公布日期 |
1993.08.03 |
| 申请号 |
US19920883510 |
申请日期 |
1992.05.15 |
| 申请人 |
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG |
发明人 |
SCHWARZ, MICHAEL;CASUTT, MICHAEL |
| 分类号 |
C07D513/04;C07D513/20;C07F9/54 |
主分类号 |
C07D513/04 |
| 代理机构 |
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