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