3-Cyano-2-methyl-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
6-Chloro-4-nitro-2-(trifluoromethoxy)pyridine-3-methanol
4-Cyano-3-methyl-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-Cyano-5-methyl-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride