5-Methoxy-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-(Chloromethyl)-5-iodo-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-(Chloromethyl)-5-(difluoromethyl)-6-iodo-2-(trifluoromethoxy)pyridine
2-(Chloromethyl)-5-iodo-4-(trifluoromethoxy)pyridine-3-carboxaldehyde