Methyl 4-(difluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-2-acetate
Methyl 2-(difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-(difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-5-acetate
2-(Difluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid