2-Bromo-3-methoxy-6-(trifluoromethoxy)pyridine-4-carbonyl chloride
4-Bromo-3-(difluoromethyl)-6-fluoropyridine-2-sulfonyl chloride
4-(Chloromethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-methanol
3-Fluoro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride