['CO', 'CC(C=O)CN(C)C(=O)c1csc(-c2cccs2)n1', 'CNCC(C)C(=O)OC', 'O=Cc1csc(-c2cccs2)n1', 'COC(=O)C(C)C', 'CNC(=O)c1csc(-c2cccs2)n1', 'c1csc(-c2nccs2)c1', 'COC(=O)C(C)CN(C)C=O', 'c1ccsc1', 'COC(=O)C(C)CN(C)C(=O)c1cscn1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1csc(-c2nccs2)c1.