CC(=O)OCC1OC(n2c3c(c(-c4ccc(Cl)cc4)c(C#N)c2=S)CCCC3)C(OC(C)=O)C(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?