CC(=O)OCC(NC(=O)C(COCc1ccccc1)NC(=O)OC(C)(C)C)C1OC(n2cc(C)c(=O)[nH]c2=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?