Process for preparation of beta-lactam derivatives.
摘要
<p>The invention provides a process for preparing a beta -lactam derivative represented by the formula <CHEM> the process comprising reacting a beta -lactam derivative represented by the following formula (II) and having a protected carboxyl group with a cresol; <CHEM> wherein R represents a benzyl group having an electron-donating group as a substituent on the phenyl ring, a diphenylmethyl group which may have an electron-donating group as a substituent on the phenyl ring or a tert-butyl group.</p>
申请公布号
EP0331146(B1)
申请公布日期
1994.01.12
申请号
EP19890103587
申请日期
1989.03.01
申请人
OTSUKA KAGAKU KABUSHIKI KAISHA;TAIHO PHARMACEUTICAL COMPANY LIMITED