['CNC', 'CS(=O)(=O)Nc1ccc(O)c(C=O)c1', 'C[SH](=O)=O', 'CN(C)C(=O)c1cc(N)ccc1O', 'CS(N)(=O)=O', 'CN(C)C(=O)c1ccccc1O', 'CN(C)C=O', 'CS(=O)(=O)Nc1ccc(O)cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.