CN(C)C(=O)[C@H]1C[C@H]1[C@@H](O)[C@H](CO)NC(=O)[C@H](COCc1ccccc1)NC(=O)OC(C)(C)C
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?