CC1(C)CC2CC(C)(CN2S(=O)(=O)c2ccc(C(=O)Nc3cccc(S(=O)(=O)N4CCOCC4)c3)cc2)C1
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?