CC(=O)O.CC(=O)OC[C@H]1O[C@@H](Oc2cc3ccc(=O)oc3cc2OC(C)=O)[C@H](OC(C)=O)[C@@H](OC(C)=O)[C@@H]1OC(C)=O
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?