['CC(C)C', 'OCCN1CCC(c2ccccc2)CC1', 'CC(C)(C)O', 'CCN1CCC(c2ccccc2)CC1', 'CCOC(C)(C)C', 'c1ccc(C2CCNCC2)cc1', 'c1ccccc1', 'CC(C)(C)OCCN1CCCCC1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc(C2CCNCC2)cc1.