6-Chloro-2-(difluoromethyl)-4-nitropyridine-3-carbonyl chloride
2-(Chloromethyl)-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-sulfonyl chloride
3-Chloromethyl-2-methyl-5-(trifluoromethyl)pyridine
3-Cyano-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride