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