2-Cyano-5-methoxy-3-(trifluoromethoxy)pyridine-4-sulfonamide
2-Cyano-4-methoxy-3-(trifluoromethoxy)pyridine-5-sulfonamide
4-Cyano-5-methoxy-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-(Aminomethyl)-6-fluoro-5-(trifluoromethoxy)pyridine-3-acetic acid