COC(=O)[C@H]1C(OC)[C@@H](OC(=O)c2cc(OC)c(OC)c(OC)c2)C[C@@H]2CN3CCc4c([nH]c5cc(OC)ccc45)[C@H]3C[C@H]21
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?