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