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