['CNC', 'CC(C=O)COCc1ccccc1', 'OCc1ccccc1', 'CC(C)C(=O)N(C)C', 'Cc1ccccc1', 'CC(CO)C(=O)N(C)C', 'c1ccccc1', 'COCC(C)C(=O)N(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.