| 摘要 |
<p>Compounds of formula (IA) or (IB) have antibacterial activity: wherein W is =CH- or =N-; Ri and R2 are independently selected from hydrogen, fluoro and chloro, provided that Ri and R2 are not each hydrogen when W is =CH-; n is 0 or 1; X is -O-, -S-, or -CH2-; and Q is (i) a phenyl radical, a naphthyl radical, a monocyclic carbocyclic or heteroaryl radical having 3 to 6 ring atoms, or a bicyclic heteroaryl radical having 5 to 10 ring atoms, any of which radicals being optionally substituted; or (ii) an optionally substituted C1-C6 alkyl, C2-C6 alkenyl, or C2-C6 alkynyl radical, which may optionally be interrupted by -O-, -S-, -S(O)-, -S(O2)-, -NH-, -N(CH3)-, -N(CH2CH3)-, -C-K=Oh or -C(=O)-O-.</p> |
