3-Chloro-4-methyl-2-(trifluoromethoxy)pyridine-5-sulfonamide
2-Amino-3-cyano-4-nitro-5-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-(difluoromethyl)-5-(trifluoromethyl)pyridine-2-sulfonyl chloride
4,5-Dichloro-2-(difluoromethyl)pyridine-3-carbonyl chloride