['COCCO', 'CC/C=C(/C)C(=O)Nc1cccc(NC=O)c1', 'CC/C=C(/C)C=O', 'COCCOC(=O)Nc1cccc(N)c1', 'COCCOC=O', 'CC/C=C(/C)C(=O)Nc1cccc(N)c1', 'CCOC', 'CC/C=C(/C)C(=O)Nc1cccc(NC(=O)O)c1', 'CO', 'CC/C=C(/C)C(=O)Nc1cccc(NC(=O)OCC)c1', 'CC/C=C(/C)C(N)=O', 'COCCOC(=O)Nc1ccccc1', 'COCCOC(N)=O', 'CC/C=C(/C)C(=O)Nc1ccccc1', 'CCC', 'CCC(=O)Nc1cccc(NC(=O)OCCOC)c1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.