| 发明名称 |
PROCESS FOR PREPARING 7-SUBSTITUTED-AMINO-3-HYDROXY-3-CEPHEM-4-PROTECTED CARBOXY-SULFOXIDE ESTERS |
| 摘要 |
X-8728(EPO) A process for the conversion of a 4-chlorosulfonyl azetidinone (a) to a 3-hydroxy-3-cephem-sulfoxide ester (d) by subjecting an intermediate comprising a tin containing Lewis acid-type Fiedel-Crafts catalyst and 3exomethylene cepham to ozonolysis.
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| 申请公布号 |
CA2093507(A1) |
申请公布日期 |
1993.10.09 |
| 申请号 |
CA19932093507 |
申请日期 |
1993.04.06 |
| 申请人 |
LILLY (ELI) AND COMPANY |
发明人 |
BROWN, FRANK JR. |
| 分类号 |
C07D501/04;C07D501/00;C07D501/14;C07D501/59;(IPC1-7):C07D501/59;C07F7/10 |
主分类号 |
C07D501/04 |
| 代理机构 |
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