['O=Cc1ccccc1', 'O=C(Cl)[C@H]1CS(=O)(=O)CN1', 'O=CCl', 'O=C(c1ccccc1)N1CCS(=O)(=O)C1', 'c1ccccc1', 'O=CN1CS(=O)(=O)C[C@@H]1C(=O)Cl']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(c1ccccc1)N1CCS(=O)(=O)C1.