5-Chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
5-Bromo-3-(chloromethyl)-2-methyl-4-(trifluoromethoxy)pyridine
Ethyl 2-bromo-3-methyl-6-(trifluoromethoxy)pyridine-4-carboxylate
4-Chloro-5-hydroxy-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride