Methyl 4-(difluoromethyl)-2-methoxy-3-(trifluoromethyl)pyridine-5-carboxylate
Methyl 3-(difluoromethyl)-5-methoxy-6-(trifluoromethyl)pyridine-2-carboxylate
Methyl 3-(difluoromethyl)-5-methoxy-2-(trifluoromethyl)pyridine-4-carboxylate
Methyl 4-(difluoromethyl)-6-methoxy-3-(trifluoromethyl)pyridine-2-acetate