Antibacterially active penem compounds and salts of the formula ##STR1## wherein R is hydrogen or an esterifying group, R.sup.2 is hydrogen, hydroxy, or protected hydroxy, and R.sup.1 is phenyl, naphthyl, thienyl, pyridyl, quinolyl, or isoquinolyl, or such a group which is mono-, di-, or tri-substituted; methods for making such compounds or salts; and antibacterial pharmaceutical preparations containing the compounds or salts.
具有抗菌活性的
青霉素类化合物和公式##STR1##的盐,其中R为氢或酯化基团,R.sup.2为氢、羟基或保护羟基,R.sup.1为苯基、
萘基、
噻吩基、
吡啶基、
喹啉基或
异喹啉基,或者是单取代、双取代或三取代的这样一种基团;制备这种化合物或盐的方法;以及含有这些化合物或盐的抗菌药物制剂。