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