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