5-(Bromomethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-sulfonyl chloride
2-Amino-3-(difluoromethyl)-4-iodopyridine-5-carboxamide
2-Bromo-3-cyano-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
2-Chloro-4-hydroxy-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride