Ethyl 5-amino-3-(difluoromethyl)-2-methoxypyridine-4-acetate
2-Amino-3-(difluoromethyl)-6-methoxypyridine-5-sulfonamide
5-Amino-3-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxaldehyde
3-Amino-4-(bromomethyl)-5-(difluoromethyl)pyridine-2-carboxaldehyde