Ethyl 3-chloro-4-(difluoromethyl)-6-fluoropyridine-2-acetate
5-Bromo-4-(bromomethyl)-3-(difluoromethyl)pyridine-2-methanol
5-Chloro-2-(difluoromethyl)-4-fluoropyridine-3-sulfonyl chloride
4-Chloro-2-(difluoromethyl)-5-fluoropyridine-3-sulfonyl chloride