['CC(C)CCCC(C)N', 'COc1ccc([N+](=O)[O-])c(C=O)c1', 'CO', 'CC(C)CCCC(C)NC(=O)c1ccccc1[N+](=O)[O-]', 'CCCCCC(C)C', 'COc1ccc([N+](=O)[O-])c(C(N)=O)c1', 'CC(C)CCCC(C)NC=O', 'COc1ccc([N+](=O)[O-])cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.