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