2-Bromo-6-(difluoromethyl)-4-(trifluoromethyl)pyridine
5-(Difluoromethyl)-4-nitropyridine-2-sulfonyl chloride
4-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-methanol
5-(Chloromethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-methanol