4-Chloro-3-(difluoromethyl)-6-fluoropyridine-2-sulfonyl chloride
6-(Bromomethyl)-4-chloro-3-(difluoromethyl)-2-fluoropyridine
4-Chloro-3-(difluoromethyl)-5-fluoropyridine-2-sulfonyl chloride
2-(Bromomethyl)-4-chloro-3-(difluoromethyl)-6-fluoropyridine