COc1ccc(CNC(=O)[C@@H]2CC=C[C@@H]3CCN(Cc4ccc(Cl)c(Cl)c4)C(=O)[C@@H]32)cc1
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?