COc1ccc(-c2c3c(n(C4OC(COC(C)=O)C(OC(C)=O)C(OC(C)=O)C4OC(C)=O)c(=S)c2C#N)CCCC3)cc1
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?