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