Disclosed are 1-, 6- and 2-substituted-1-carba-2-penem-3-carboxylic acids of the following structure: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, aryl, and aralkyl. Such compounds as well as their pharmaceutically acceptable salt, ester and amide 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.
本发明涉及以下结构的1-,6-和2-取代的1-卡巴-2-青霉烷-3-
羧酸:##STR1##其中R.sup.1, R.sup.2, R.sup.3和R.sup.4是独立选择自氢,烷基,芳基和芳基烷基等群的。这些化合物以及它们的药学上可接受的盐,酯和酰胺衍
生物可用作抗生素。还公开了制备这些化合物的方法,含有这些化合物的制药组合物以及在需要抗生素效果时,通过给予这些化合物和组合物来治疗的方法。