4-Bromo-6-cyano-2-(difluoromethyl)pyridine-3-carbonyl chloride
3-(Fluoromethyl)-6-methoxy-2-(trifluoromethoxy)pyridine-4-acetonitrile
3-(Difluoromethyl)-6-nitro-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
3-(Difluoromethyl)-2-nitro-6-(trifluoromethyl)pyridine-4-sulfonyl chloride