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