['CC', 'O=S1(=O)C[C@@H](O)[C@H](NCCCO)C1', 'CCO', 'CCCN[C@@H]1CS(=O)(=O)C[C@H]1O', 'CCCOCC', 'N[C@@H]1CS(=O)(=O)C[C@H]1O', 'CCOCCCN', 'O=S1(=O)CC[C@H](O)C1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S1(=O)CCCC1.