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