4-Amino-2-(bromomethyl)-3-(difluoromethyl)pyridine-6-acetonitrile
3-Amino-5-(bromomethyl)-2-(difluoromethyl)pyridine-6-acetonitrile
3-Amino-4-(bromomethyl)-2-(difluoromethyl)pyridine-6-acetonitrile
6-Amino-4-(difluoromethyl)-2-methylpyridine-3-sulfonamide