4-Cyano-2-methyl-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Chloro-4-nitro-5-(trifluoromethoxy)pyridine-2-methanol
5-Cyano-3-methyl-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-Cyano-4-methyl-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride