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