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
3-Bromo-2-methoxy-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride