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