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