4-Bromo-2-cyano-6-(trifluoromethoxy)pyridine-3-sulfonamide
2-Bromo-3-iodo-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-Bromo-2-cyano-3-(trifluoromethoxy)pyridine-6-sulfonamide
5-(Aminomethyl)-4-bromo-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine