| abstract |
Compounds of formula (I) are antibacterials: n n n wherein: n R 1 represents hydrogen, or C 1 -C 6 alkyl or C 1 -C 6 alkyl substituted by one or more halogen atoms; R 2 represents a group R 10 —(X) n —(ALK) m — wherein R 10 represents hydrogen, or a C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, cycloalkyl, aryl, or heterocyclyl group, any of which may be unsubstituted or substituted by (C 1 -C 6 )alkyl, (C 1 -C 6 )alkoxy, hydroxy, mercapto, (C 1 -C 6 )alkylthio, amino, halo (including fluoro, chloro, bromo and iodo), trifluoromethyl, cyano, nitro, —COOH, —CONH 2 , —COOR A , —NHCOR A , —CONH A , —NH A , —NR A R B , or —CONR A R B wherein R A and R B are independently a (C 1 -C 6 )alkyl group, and ALK represents a straight or branched divalent C 1 -C 6 alkylene, C 2 -C 6 alkenylene, or C 2 -C 6 alkynylene radical, and may be interrupted by one or more non-adjacent —NH—, —O— or —S—linkages, X represents —NH—, —O— or —S—, and m and n are independently 0 or 1; and A represents a group as defined in the specification. |