CC(C)(C)[C@H]1COC(=O)[C@H](NC(=O)OCC2c3ccccc3-c3ccccc32)C/C=C\C[C@@H](CC(=O)N[C@H](CO)Cc2ccccc2)C(=O)N1
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?