3-Amino-6-(difluoromethyl)-2-methoxypyridine-5-sulfonamide
Methyl 3-amino-5-(aminomethyl)-2-(difluoromethyl)pyridine-4-carboxylate
5-Amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-6-carboxylic acid
3-Amino-2-(aminomethyl)-4-(difluoromethyl)-6-methylpyridine