['CC(C)CCO', 'COc1ccc(S(N)(=O)=O)cc1C=O', 'CCC(C)C', 'COc1ccc(S(N)(=O)=O)cc1C(=O)O', 'CO', 'CC(C)CCOC(=O)c1cccc(S(N)(=O)=O)c1', 'CC(C)CCOC=O', 'COc1ccc(S(N)(=O)=O)cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.