6- and 6,6- disubstituted-2-substituted-pen-2-em-3-carboxylic acids; processes for their preparation and pharmaceutical compositions containing such compounds
申请人:Merck & Co., Inc.
公开号:EP0002210A1
公开(公告)日:1979-06-13
Disclosed are 6- and 6.6-disubstituted-2-substituted-pen-2-em-3-carboxylic acids of the following structure:
wherein: R1 and R2 are independently selected from hydrogen, -NHR1' (R1' is H or acyl), alkyl, alkoxyl. aralkyl, aryl. heterocyclyl and heterocycfyl-alkyl: R3 is selected from hydrogen, -R, -OR, -SR. -NR2; R is substituted and unsubstituted alkyl, aryl, aralkyl, hetero-heterocyclyl, or heterocyclylalkyl; n is 0 or 1: when n=1, R3 is not -SR. Such compounds and their pharmaceutically acceptable salt, and ester derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds, pharmaceutical compositions comprising such compounds and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.
本发明公开了具有以下结构的 6-和 6.6-二取代-2-取代-戊-2-烯-3-羧酸:
其中R1和R2独立地选自氢、-NHR1'(R1'为H或酰基)、烷基、烷氧基、芳基、杂环基和杂环烷基:R3 选自氢、-R、-OR、-SR.-NR2;R 是取代和未取代的烷基、芳基、烷基、杂杂环基或杂环烷基;n 是 0 或 1:当 n=1 时,R3 不是 -SR。此类化合物及其药学上可接受的盐和酯衍生物可用作抗生素。此外,还公开了制备此类化合物的工艺、包含此类化合物的药物组合物以及治疗方法,包括在需要抗生素效果时施用此类化合物和组合物。