The penicillins of the formulae ##STR1## in which R.sup.1 is phenyl, 2-thienyl, 3-thienyl, cyclohexyl, cyclohexen-1-yl, cyclohexa-1,4-dienyl, cyclohexa-1,4-dienylmethyl, 4-methoxycyclohexa-1,4-dienylmethyl or one of certain 4-substituted or 3,4-disubstituted phenyl moieties, and their pharmaceutically acceptable salts and physiologically hydrolyzed esters possess antibacterial activity and are particularly valuable in treating Pseudomonas infections.
公式为##STR1##中,其中R.sup.1为苯基,2-
噻吩基,3-
噻吩基,环己基,
环己烯-1-基,
环己烯-1,4-基,
环己烯-1,4-甲基,4-甲氧基
环己烯-1,4-甲基或某些4-取代或3,4-二取代苯基,以及它们的药学上可接受的盐和生理
水解酯具有抗菌活性,并在治疗
铜绿假单胞菌感染方面具有特殊价值。