['NS(=O)(=O)C1COC1', 'C[C@H]1CCCN1S(C)(=O)=O', 'C[SH](=O)=O', 'O=S(=O)(NC[C@H]1CCCN1)C1COC1', 'O=[SH](=O)C1COC1', 'CS(=O)(=O)N1CCC[C@@H]1CN', 'CNS(=O)(=O)C1COC1', 'CS(=O)(=O)N1CCCC1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(NC[C@H]1CCCN1)C1COC1.