C#CCOCCOCCOCCNc1nc(N2CCN(C(=O)Cn3cc(CC(C)O)nn3)CC2)nc(N2CCN(C(=O)[C@H]([C@@H](C)O)n3cc(CCCCN)nn3)CC2)n1.Cl
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?