CN(C)c1ccc(O)c2c1CC1CC3[C@@H](N(C)C)C(=O)C(C(N)=O)=C(O)[C@]3(O)C(=O)C1=C2O.Cl
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?