5-Bromo-2-fluoro-4-(trifluoromethoxy)pyridine-3-sulfonamide
6-Bromo-3-chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
3-Bromo-4-methoxy-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-Bromo-5-fluoro-2-(trifluoromethoxy)pyridine-3-sulfonamide