['CC(C)(C)O', 'CCN(C)Cc1ccco1', 'CC(C)C', 'CN(CCO)Cc1ccco1', 'CCOC(C)(C)C', 'CNCc1ccco1', 'Cc1ccco1', 'CNCCOC(C)(C)C', 'c1ccoc1', 'CN(C)CCOC(C)(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccoc1.