2-Chloro-3-methoxy-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-(Chloromethyl)-2-cyano-5-fluoro-3-(trifluoromethoxy)pyridine
2-Chloro-3-methoxy-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Chloro-6-methoxy-2-(trifluoromethoxy)pyridine-3-sulfonamide