NC(=O)C1=CN(C2OC(COP(=O)([O-])OP(=O)([O-])OC[C@H]3O[C@@H](n4cnc5c(N)ncnc54)[C@H](OP(=O)([O-])[O-])[C@H]3O)C(O)C2O)C=CC1.[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?