Patent ID: 8575337

Claim:
An antimicrobial composition comprising a compound of the formula (I): or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier, diluent or excipient; wherein: ring A is any one of the groups: in which the dashed line represents the presence or absence of a bond; m is 0 or 1; R is H, —NHC(═O)R A , —NHC(═S)R A , —NH-het 1 , —O-het 1 , —S-het 1 , —S(═O)-het 1 , —S(═O) 2 -het 1 , het 2 , —CONHR A , —OH, lower alkyl, lower alkoxy or lower alkenyl; R A is hydrogen, lower alkyl, halogenated lower alkyl, amino, (lower alkyl)amino, lower alkenyl, heterocycle (lower)alkyl, (lower alkyl)carbonyl, (lower alkyl)carbonyl lower alkyl, lower alkoxy, cycloalkyl, cycloalkyl(lower)alkyl, arylcarbonyl, arylcarbonyl(lower)alkyl, heterocyclecarbonyl or heterocyclecarbonyl(lower)alkyl; het 1 and het 2 are independently a heterocyclic group; ring B is a benzene ring optionally substituted; A 1 and A 2 are independently a nitrogen atom or a carbon atom; the dashed line represents the presence or absence of a bond; the fused ring C-D, is a fused ring of the formula (II-1-14) or the formula (II-2-14), R 3 , R 4 , R 5 , and R 7 are independently selected from Substituent Group A consisting of hydrogen, optionally substituted lower alkyl, optionally substituted lower alkenyl, optionally substituted lower alkoxy, carboxy, optionally substituted carbamoyl, cyano, formyl, optionally substituted (lower alkyl)carbonyl, optionally substituted (lower alkoxy)carbonyl, optionally substituted heterocyclic group, optionally substituted heterocyclecarbonyl, optionally substituted amino, optionally substituted aminocarbonyl, optionally substituted aryl, optionally substituted arylcarbonyl, (lower alkyl)sulfonyl, (lower alkyl)sulfinyl and halogen.