['CC(C)CN(CC=O)CC(C)C', 'CN(C)S(=O)(=O)c1ccccc1CN', 'CC(C)C', 'CC(C)CNCC(=O)NCc1ccccc1S(=O)(=O)N(C)C', 'CC(C)CNCC(C)C', 'CC(=O)NCc1ccccc1S(=O)(=O)N(C)C', 'Cc1ccccc1S(=O)(=O)N(C)C', 'CC(C)CN(CC(N)=O)CC(C)C', 'CNC', 'CC(C)CN(CC(=O)NCc1ccccc1[SH](=O)=O)CC(C)C', 'CN(C)S(=O)(=O)c1ccccc1', 'CNC(=O)CN(CC(C)C)CC(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.