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