['CC(C)(C)CC(=O)NCC=O', 'COc1ccc(S(N)(=O)=O)cc1C', 'CC(C)(C)CC=O', 'COc1ccc(S(=O)(=O)NC(=O)CN)cc1C', 'CO', 'Cc1cccc(S(=O)(=O)NC(=O)CNC(=O)CC(C)(C)C)c1', 'CC(C)(C)CC(N)=O', 'COc1ccc(S(=O)(=O)NC(C)=O)cc1C', 'CC(C)(C)CC(=O)NCC(N)=O', 'COc1ccc([SH](=O)=O)cc1C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.