CC(C)(C)OC(=O)N[C@@H](Cc1ccccc1)C(=O)NC[C@H]1CC[C@H](C(=O)N[C@@H](CC(=O)O)C(=O)O)CC1
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?