O=C1[C@H]2CC[C@@H]3/C(=N\OC[C@@H](O)COCc4ccco4)C[C@@H](O)[C@@H](O)[C@@H]3[C@@H]2C(=O)N1c1cccc(Oc2ccccc2)c1
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?