申请人:Sankyo Company Limited
公开号:EP0516486A2
公开(公告)日:1992-12-02
Compounds of formula (I):
[in which: R¹ is hydrogen or a hydroxy-protecting group; R² is alkyl, alkoxy, halogen, optionally substituted phenyl or optionally substituted phenoxy; R³ is optionally substituted pyridyl, optionally substituted quinolyl or phenyl group which has a substituent of formula -CYNR⁵R⁶, where Y is oxygen or sulphur, and R⁵ and R⁶ are each alkyl, aryl or aralkyl, or R⁵ and R⁶ and the nitrogen to which they are attached together form a heterocyclic group; R⁴ is hydrogen or an amino-protecting group; and Z is sulphur or oxygen]; are valuable intermediates in the preparation of carbapenem compounds and retain a desirable configuration during conversion to such carbapenem compounds.
式(I)化合物:
其中R¹ 是氢或羟基保护基团;R² 是烷基、烷氧基、卤素、任选取代的苯基或任选取代的苯氧基;R³ 是任选取代的吡啶基、任选取代的喹啉基或具有式-CYNR⁵R⁶取代基的苯基,其中 Y 是氧或硫,R⁵ 和 R⁶ 各为烷基、芳基或芳烷基,或 R⁵ 和 R⁶ 与它们连接的氮一起形成杂环基团;R⁴为氢或氨基保护基团;Z 为硫或氧];是制备碳青霉烯类化合物的重要中间体,并在转化为此类碳青霉烯类化合物的过程中保持理想的构型。