5-Chloro-3-(difluoromethyl)-4-fluoropyridine-2-sulfonyl chloride
3-Chloro-2-(difluoromethyl)-4-hydroxypyridine-5-methanol
3-Chloro-5-(difluoromethyl)-2-fluoropyridine-6-sulfonyl chloride
5-Chloro-4-(difluoromethyl)-2-fluoropyridine-3-sulfonyl chloride