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公开(公告)号:US5191074A
公开(公告)日:1993-03-02
申请号:US746083
申请日:1991-08-12
申请人: Yasumitsu Tamura , Junichi Haruta , Nishi Koichi
发明人: Yasumitsu Tamura , Junichi Haruta , Nishi Koichi
IPC分类号: C07D205/08 , C07F7/08 , C07F7/18
CPC分类号: C07D205/08 , C07F7/0812 , C07F7/186
摘要: A process for producing a .beta.-lactam compound of the formula ##STR1## wherein OR.sup.1 is a protected or unprotected hydroxyl group; R.sup.2 is a C.sub.1 to C.sub.7 alkyl or aryl group; from an azetidinone compound of the formula ##STR2## wherein X is an electronegative group removable through the reaction in three steps in which the second step subjects the .beta.-lactam compound obtained in the first step to silylation to convert the R.sup.2 group to the beta form.
摘要翻译: 制备式“IMAGE”的β-内酰胺化合物的方法,其中OR1是被保护或未被保护的羟基; R2是C1-C7烷基或芳基; 其中X是通过三个步骤可以通过反应除去的电负性基团,其中第二步骤将第一步中获得的β-内酰胺化合物甲硅烷基化以将R2基团转化为β形式 。