['CC(C)CNC=O', 'CNCCOc1ccc(OC)cc1', 'CC(C)CN', 'COc1ccc(OCCN(C)C=O)cc1', 'COc1ccc(O)cc1', 'CCN(C)C(=O)NCC(C)C', 'CO', 'CC(C)CNC(=O)N(C)CCOc1ccccc1', 'COc1ccccc1', 'CC(C)CNC(=O)N(C)CCO', 'CNC(=O)NCC(C)C', 'CCOc1ccc(OC)cc1', 'CC(C)C', 'COc1ccc(OCCN(C)C(N)=O)cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.