['CC1(S(C)(=O)=O)CC1', 'NC1CCCOCC1', 'C1CCCOCC1', 'CS(=O)(=O)C1(CN)CC1', 'CS(=O)(=O)C1CC1', 'CNC1CCCOCC1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is C1COCCC(NCC2CC2)C1.