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