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