COC(=O)C1=C(C(=O)OC)[C@]2([C@H]3CCCCN[C@@H](Cc4ccccc4)C(=O)N3Cc3ccccc3)C=C[C@H]1O2
Hydrogen bond acceptor: The atom, ion, or molecule component of a hydrogen bond which does not supply the bridging (shared) hydrogen atom. How many hydrogen bond acceptors does the molecule have?