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