Methyl 5-(difluoromethyl)-2-methyl-3-nitropyridine-4-acetate
6-(Difluoromethyl)-2-methoxy-4-(trifluoromethyl)pyridine-3-acetonitrile
2-(Difluoromethyl)-6-methoxy-3-(trifluoromethyl)pyridine-5-acetonitrile
3-(Chloromethyl)-4-(difluoromethyl)-5-methoxypyridine-2-acetic acid