['CCC', 'CC(C)(CO)NCc1ccccc1O', 'CC(C)O', 'CC(C)(CO)NCc1ccccc1', 'CC(C)(N)CO', 'Cc1ccccc1OC(C)C', 'CC(C)CO', 'CC(C)Oc1ccccc1CN', 'CNC(C)(C)CO', 'CC(C)Oc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.