COC(=O)[C@@]1(Cc2ccc(OC)cc2)[C@@H]2C(=CC(=O)[C@H]2CC(=O)C(=O)N2CCCC2)CN1C(=O)c1ccccc1
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?