4-Amino-3-(bromomethyl)-6-(difluoromethyl)-2-methylpyridine
3-Amino-6-(aminomethyl)-2-(difluoromethyl)pyridine-4-carboxylic acid
4-Amino-3-(bromomethyl)-2-(difluoromethyl)-6-methylpyridine
5-Amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-3-carboxylic acid