['CO', 'CO[C@H]1CCN(S(=O)(=O)CCC2CCC2)C1', 'CO[C@@H]1CCN(S(=O)(=O)CCC2CCC2)C1', 'CO[C@H]1CNC[C@H]1OC', 'O=[SH](=O)CCC1CCC1', 'C1CCC1', 'CCS(=O)(=O)N1C[C@H](OC)[C@H](OC)C1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(CCC1CCC1)N1CCCC1.