CEPHEM COMPOUND, PROCESS FOR PRODUCING THE COMPOUND, AND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME

摘要

The object of the present invention is to provide a cephem compound having high activity against various pathogenic microorganisms. The cephem compound of this invention is represented by the general formula <IMG> ¢wherein Q represents CH or N; R1 represents a carboxylate etc; and R represents the group <IMG> or the group <IMG> where R2 represents a lower alkyl group etc, n represents an integer of 0 or 1 through 3, B- represents an anion, f is equal to 0 when R1 represents a carboxylate and 1 where R1 represents a carboxyl group, and the ring C represents a 5-membered heterocyclic group of not more than 4 nitrogen atoms, which may be substituted by lower alkyl!,