Cc1cc(C(=O)N[C@H](c2ccccc2)[C@@]2(C)C[C@@H]2[C@@H](C)C(=O)Nc2ccc3ccccc3c2)n(C)n1
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?