COc1ccc(C(=O)CC2=Nc3nnc(CCCCCCCc4nnc5n4C(=O)C(CC(=O)c4ccc(OC)cc4)=N5)n3C2=O)cc1
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?