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