5-Bromo-2-iodo-3-(trifluoromethoxy)pyridine-4-sulfonamide
3-Amino-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-acetonitrile
4-Bromo-3-iodo-2-(trifluoromethoxy)pyridine-5-sulfonamide
2-Amino-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetonitrile