['CC(C)(C)N', 'Cc1ccc(S(=O)(=O)NC(C)C=O)c(Br)c1', 'CCC(=O)NC(C)(C)C', 'Cc1ccc(S(N)(=O)=O)c(Br)c1', 'CC(C)C', 'Cc1ccc(S(=O)(=O)NC(C)C(N)=O)c(Br)c1', 'CC(N)C(=O)NC(C)(C)C', 'Cc1ccc([SH](=O)=O)c(Br)c1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.