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