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