6-(1-(2-SUBSTITUTED ETHYL)-1,2,3 TRIAZOL-4-YL METHYLENE)PENEM-3-CARBOXYLIC ACID INTERNAL SALTS OF COMPOUNDS HAVING THE ETHYL GROUP SUBSTITUTED BY A NITROGEN CONTAINING HETEROCYCLE; PREPARATORY PROCESSES AND PHARMACEUTICAL COMPOSITIONS

摘要

Compounds of the general formula (II): CHEM in which N+ denotes an unsubstituted or substituted nitrogen-containing heterocyclyl ring bonded to the remainder of the molecule through a ring nitrogen atom and carrying a positive charge on said nitrogen atom; and the wavy line denotes either the E- or Z-isomeric position, are novel and are useful in the treatment of antibacterial infection in humans or animals.