3-Chloro-6-(difluoromethyl)-4-fluoropyridine-2-sulfonyl chloride
2-Chloro-5-(difluoromethyl)-4-hydroxy-3-(trifluoromethyl)pyridine
5-Chloro-2-(difluoromethyl)-3-fluoropyridine-6-sulfonyl chloride
4-Chloro-5-(difluoromethyl)-3-fluoropyridine-2-sulfonyl chloride