发明名称 |
PROCESS FOR PREPARATION OF ESTERS OF 2-DIAZO-3-TRIMETHYLSILYLOXY-3-BUTENOIC ACID |
摘要 |
<p>The present invention relates to a process for the preparation of esters of 2-diazo-3-trimethylsilyloxy-3-butenoic acid which comprises reacting a diazoacetoacetate with iodotrimethylsilane in the presence of an organic base, wherein iodotrimethylsilane is prepared by reacting hexamethyldisilane with iodine. The present invention further relates to converting such esters of 2-diazo-3-trimethylsilyloxy-3-butenoic acid to other compounds, such as a substituted diazoazetidinone, an azetidinone, or a bicyclo ketoester.</p> |
申请公布号 |
EP1670806(B1) |
申请公布日期 |
2010.01.06 |
申请号 |
EP20040769194 |
申请日期 |
2004.08.27 |
申请人 |
RANBAXY LABORATORIES LIMITED |
发明人 |
KUMAR, YATENDRA;TEWARI, NEERA;RAI, BISHWA, PRAKASH |
分类号 |
C07F7/18 |
主分类号 |
C07F7/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|