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