Patent ID: 7312179

Claim:
A compound of formula (I): wherein X is (X1), (X2) or (X3); Het is pyrrolyl, pyrazolyl, thiazolyl, or pyridinyl the ring being substituted by groups R 4 , R 5 and R 6 ; R 1 and R 2 are each, independently, hydrogen, halo or methyl; R 3 is optionally substituted C 2-12 alkyl, optionally substituted C 2-12 alkenyl, optionally substituted C 2-12 alkynyl, optionally substituted C 3-12 cycloalkyl, optionally substituted phenyl or optionally substituted heterocyclyl; R 4 , R 5 and R 6 are each, independently, selected from hydrogen, halo, cyano, nitro, C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 alkoxy(C 1-4 )alkylene and C 1-4 haloalkoxy(C 1-4 )alkylene, provided that at least one of R 4 , R 5 and R 6 is not hydrogen; and R 7 and R 8 are each, independently, hydrogen, halogen, C 1-4 alkyl or C 1-4 haloalkyl.