发明名称 |
FREMGAGNSMAADE TIL FREMSTILLING AF 3-EXOMETHYLENCEPHAM-SULFOXIDER |
摘要 |
A process for preparing a 3-exomethylenecepham sulfoxide ester of the formula 2; …<CHEM>… wherein R is the residue of a carboxylic acid and R1 is a carboxylic acid protecting group, which process comprises:… (a) mixing under anhydrous conditions in an inert organic solvent a 2-chlorosulfinylazetidin-4-one of the formula 1: …<CHEM>… with stannic chloride in the presence of an oxygen compound selected from the group consisting of …<CHEM>… |
申请公布号 |
DK431479(A) |
申请公布日期 |
1980.05.14 |
申请号 |
DK19790004314 |
申请日期 |
1979.10.12 |
申请人 |
LILLY AND CO E |
发明人 |
CHOU T S |
分类号 |
C07C41/00;C07C67/03;C07D;C07D205/04;C07D205/08;C07D501/02;C07D501/04;C07D501/08;C07D501/10;C07D501/14;C07D501/18;C07D501/22;C07D501/46;(IPC1-7):C07D/ |
主分类号 |
C07C41/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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