5-Chloro-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Chloro-4-hydroxy-3-methoxy-6-(trifluoromethoxy)pyridine
5-Chloro-3-(fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
5-Chloro-4-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride