Azetidinone derivatives, a process for their preparation and their use as intermediates in the preparation of carbapenem antibiotics
申请人:SANKYO COMPANY LIMITED
公开号:EP0102239A1
公开(公告)日:1984-03-07
Compounds of formula (I):
(wherein R' represents hydrogen or a hydroxy-protecting group, R2 and R3 represent hydrogen, alkyl or aryl; R4 represents optionally substituted alkyl, alicyclic heterocyclic, aryl, aromatic heterocyclic, optionally substituted alkenyl or optionally substituted alkynyl; R6 represents hydrogen or a carboxy-protecting group; and R5 represents alkoxy, aryloxy, dialkylamino or diarylamino or two of R6 together represent o-phenylenedioxy or three together represent CH3C (-CH2O-)3) may be prepared by reacting the corresponding carbonyl compound with a compound of formula P(R6)3. Compounds (I) may be cyclised to prepare carbapenem derivatives, many of which have valuable antibiotic activity.
式(I)化合物:
(其中 R' 代表氢或羟基保护基团,R2 和 R3 代表氢、烷基或芳基;R4 代表任选取代的烷基、脂环杂环基、芳基、芳香杂环基、任选取代的烯基或任选取代的炔基;R6 代表氢或羧基保护基团;以及 R5 代表烷氧基、芳氧基、二烷基氨基或二芳基氨基或两个 R6 共同代表邻苯二氧基或三个 R6 共同代表 CH3C (-CH2O-)3)可通过相应的羰基化合物与式 P(R6)3 的化合物反应制备。化合物 (I) 可通过环化制备碳青霉烯衍生物,其中许多具有重要的抗生素活性。