COc1ccc(COC(=O)N/N=C2/C[C@@H](O)[C@@H](O)[C@H]3[C@@H]2CC[C@@H]2C(=O)N(Cc4ccccc4)C(=O)[C@H]23)cc1
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?