申请人:Bayer Aktiengesellschaft
公开号:US04841042A1
公开(公告)日:1989-06-20
A process for the preparation of a 4-[3-carboxy-3-diazo-2-oxopropyl]azetidin-2-one of the formula ##STR1## comprising reacting a 4-acetoxy-2-azetininone of the formula ##STR2## with a compound of the formula ##STR3## in an inert solvent, in the presence of a base and of a silylating agent, in a one-pot process. Many of the products are new. The products are useful in the synthesis of carbapenem antibiotics.
一种制备式为##STR1##的4-[3-羧基-3-重氮基-2-氧代丙基]氮杂环戊酮的方法,包括在惰性溶剂中,在碱和硅基化试剂的存在下,用式为##STR3##的化合物与式为##STR2##的4-乙酰氧基-2-氮杂环戊酮反应,进行一锅法反应。其中许多产物是新的。这些产物在碳青霉烯抗生素的合成中有用。