6-(Aminomethyl)-3-(difluoromethyl)-4-methylpyridine-2-acetic acid
2-(Aminomethyl)-5-(difluoromethyl)-4-methylpyridine-3-acetic acid
2-(Aminomethyl)-5-(difluoromethyl)-3-methylpyridine-6-acetic acid
2-(Aminomethyl)-5-(difluoromethyl)-3-methylpyridine-4-acetic acid