CC(=O)Oc1cc(-c2oc3cc(OC(C)=O)c(C4OC(CO)C(O)C(O)C4O)c(OC(C)=O)c3c(=O)c2O)c(OC(C)=O)cc1O
Drug-like molecules usually have no more than 5 Hydrogen bond donor. How many hydrogen bond donor does the molecule have?