| abstract |
A compound of formula (I): n nwhere A is an ortho-substituted ring selected from a number of specified rings;n R 1 is halogen, cyano, nitro, C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 alkoxy or C 1-4 haloalkoxy or optionally substituted C 2-4 alkenyl, optionally substituted C 2-4 alkynyl or optionally substituted SO 2 (C 1-4 )alkyl (where the optionally substituted moieties may each have up to 3 substituents, each independently selected from halogen and C 1-4 alkoxy); R 2 is C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 alkoxy(C 1-4 )alkyl or C 1-4 alkylthio(C 1-4 )alkyl or [optionally substituted aryl](C 1-4 )alkyl- or [optionally substituted aryl]oxy(C 1-4 )alkyl-(where the optionally substituted aryl moieties may each have up to 3 substituents, each independently selected from halogen and C 1-4 alkoxy); R 3 is hydrogen, CH 2 C≡CR 4 , CH 2 CR 4 ═C(H)R 4 , CH═C═CH 2 or COR 5 or optionally substituted C 1-4 alkyl, optionally substituted C 1-4 alkoxy or optionally substituted (C 1-4 ) alkylC(═O)O (where the optionally substituted moieties may each have up to 3 substituents, each independently selected from halogen and C 1-4 alkoxy, C 1-4 alkyl, C 1-2 haloalkoxy, hydroxy, cyano, carboxyl, methoxycarbonyl, ethoxycarbonyl, methylsulfonyl and ethylsulfonyl); each R 4 is, independently, hydrogen, halogen, C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 alkoxy or C 1-4 alkoxy(C 1-4 )alkyl; and R 5 is hydrogen or optionally substituted C 1-6 alkyl, optionally substituted C 1-4 alkoxy, optionally substituted C 1-4 alkoxy(C 1-4 )alkyl, optionally substituted C 1-4 alkylthio(C 1-4 )alkyl or optionally substituted aryl (where the optionally substituted moieties may each have up to 3 substituents, each independently selected from halogen, C 1-6 alkoxy, C 1-6 haloalkoxy, cyano, hydroxy, methoxycarbonyl and ethoxycarbonyl). |