Ethyl 4-(difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-5-acetate
2-(Chloromethyl)-4-iodo-3-methoxy-6-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-3-iodo-4-methoxy-5-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-iodo-6-methoxy-4-(trifluoromethoxy)pyridine