CC(C)(C)OC(=O)NCCCC[C@H](NC(=O)c1[nH]cnc1C(=O)N1CCN(c2ccccc2)CC1)C(=O)OC(C)(C)C
Molecules possible for drug usually have no more than 5 Hydrogen bond acceptor. How many hydrogen bond acceptors does the molecule have?