['CC(=O)O', 'CC1CCN(S(=O)(=O)c2ccc(O)cc2)CC1', 'O=C(O)CO', 'CC1CCN(S(=O)(=O)c2ccccc2)CC1', 'CC1CCNCC1', 'O=C(O)COc1ccc([SH](=O)=O)cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(c1ccccc1)N1CCCCC1.