['CNC', 'CC(C)C(C=O)NCc1cccc2c1OCCCO2', 'CC(C)CC(=O)N(C)C', 'NCc1cccc2c1OCCCO2', 'CC(C)C(N)C(=O)N(C)C', 'Cc1cccc2c1OCCCO2', 'CNC(C(=O)N(C)C)C(C)C', 'c1ccc2c(c1)OCCCO2']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc2c(c1)OCCCO2.