2-Chloro-3-fluoro-4-(trifluoromethoxy)pyridine-5-sulfonamide
3-Chloro-6-fluoro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
4-Chloro-5-fluoro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-(Aminomethyl)-3-chloro-6-hydroxy-4-(trifluoromethoxy)pyridine