2-Bromo-5-(chloromethyl)-4-(trifluoromethoxy)pyridine-3-methanol
5-Bromo-2-iodo-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Bromo-3-iodo-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
2-Chloro-3-(chloromethyl)-4-fluoro-5-(trifluoromethoxy)pyridine