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