ANTIBACTERIAL AGENTS

摘要

Compounds of formula (I) have antibacterial activity wherein R represents hydrogen or 1, 2 or 3 optional substituents; W is =C(R₁)- or =N-; R₁ is hydrogen or an optional substituent and R₂ is hydrogen, methyl, or fluorine; or R₁ and R₂ taken together are -CH₂-, -CH₂CH₂-, -O-, or, in either orientation, -O- CH₂- Or -OCH₂CH₂-; R₃ is a radical of formula -(Alk¹)_m-(Z)_p-(Alk²)_n-Q wherein m, p and n are independently 0 or 1, provided that at least one of m, p and n is 1, Z is -O-, -S-, -S(O)-, -S(O₂)-, -NH-, -N(CH₃)-, -N(CH₂CH₃)-, -C(=O)-, -O-(C=O)-, -C(=O)-O-, or an optionally substituted divalent monocyclic carbocyclic or heterocyclic radical having 3 to 6 ring atoms; or an optionally substituted divalent bicyclic heterocyclic radical having 5 to 10 ring atoms; Alk¹ and Alk² are optionally substituted C₁C₆ alkylene, C₂-C₆ alkenylene, or C₂-C₆ alkynylene radicals, which may optionally terminate with or be interrupted by -O-, -S-, -S(O)-, -S(O₂)-, -NH-, -N(CH₃)-, or -N(CH₂CH₃)-; and Q is hydrogen, halogen, nitrile, or hydroxyl or an optionally substituted monocyclic carbocyclic or heterocyclic radical having 3 to 6 ring atoms; or an optionally substituted bicyclic heterocyclic radical having 5 to 10 ring atoms.