['CNC(=O)[C@@H](C)O', 'CS(=O)(=O)Cc1ccc(C=O)cc1', 'CN', 'C[C@H](C=O)OC(=O)c1ccc(CS(C)(=O)=O)cc1', 'CCC(=O)NC', 'CS(=O)(=O)Cc1ccc(C(=O)O)cc1', 'CNC(=O)[C@@H](C)OC=O', 'CS(=O)(=O)Cc1ccccc1', 'CS(C)(=O)=O', 'CNC(=O)[C@@H](C)OC(=O)c1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.