ANTIBACTERIAL COMPOUNDS, THEIR PRODUCTION AND USE

摘要

A compound of the general formula: wherein R0 is hydrogen, a nitrogen-containing heterocyclic group, an acyl group or an amino-protective group; A is S, S->O, O or CH2; R4 is hydrogen, methoxy group or formamido group; R13 is hydrogen, methyl, hydroxyl or a halogen; and A is an optionally substituted condensed cyclic group formed by combining an imidazole or pyrazole ring with 5- or 6-membered nitrogen-containing aromatic heterocyclic ring to share a C-N bond with each other, or a salt or ester thereof. and a process for preparing the same and a pharmaceutical composition thereof are disclosed.