CCCCCCn1c(=O)n2n(c1=O)[C@@H]1CN(S(=O)(=O)c3ccc(C)cc3)C[C@]1(O)[C@@H](OC(=O)NCc1ccco1)C2
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?