Nc1nc(Cl)nc2c1ncn2[C@@H]1O[C@H](COP(=O)([O-])OP(=O)([O-])OP(=O)([O-])[O-])[C@H](O)[C@H]1O.[Na+].[Na+].[Na+].[Na+]
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?