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