['CC(C)CC(C)O', 'O=CC1CCN(C2=NS(=O)(=O)c3ccccc32)CC1', 'CCCC(C)C', 'O=C(O)C1CCN(C2=NS(=O)(=O)c3ccccc32)CC1', 'CC(C)CC(C)OC=O', 'O=S1(=O)N=C(N2CCCCC2)c2ccccc21']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S1(=O)N=C(N2CCCCC2)c2ccccc21.