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