['CC(C)(C)N', 'CC(C=O)NS(=O)(=O)N(C)C1CCCCC1', 'CCC(=O)NC(C)(C)C', 'CN(C1CCCCC1)S(N)(=O)=O', 'CC(C)C', 'CC(NS(=O)(=O)N(C)C1CCCCC1)C(N)=O', 'C1CCCCC1', 'CNS(=O)(=O)NC(C)C(=O)NC(C)(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is C1CCCCC1.