4-(Aminomethyl)-2-(difluoromethyl)-6-methoxypyridine-3-carboxylic acid
4-(Aminomethyl)-6-(difluoromethyl)-3-methoxypyridine-2-carboxylic acid
4-(Aminomethyl)-2-(difluoromethyl)-5-methoxypyridine-3-carboxylic acid
4-(Aminomethyl)-2-(difluoromethyl)-3-methoxypyridine-6-carboxylic acid