CCOC(=O)[C@H]1[C@H]2COc3ccccc3[C@@H]2N2C(=O)c3c(C)cc(C)cc3NC(=O)[C@@]12C
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?