3-Fluoro-4-iodo-5-(trifluoromethoxy)pyridine-2-sulfonamide
5-Hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
6-(Aminomethyl)-4-hydroxy-3-iodo-2-(trifluoromethoxy)pyridine
4-Hydroxy-3-methoxy-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride