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