CC(=O)Oc1cc(-c2coc3cc(OC(C)=O)c(OC(C)=O)c(OC(C)=O)c3c2=O)cc(OC(C)=O)c1OC(C)=O
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?