['CC(C)(C)CCN', 'CS(=O)(=O)N1CCCC(NC=O)C1', 'CC(C)(C)CCNC=O', 'CS(=O)(=O)N1CCCC(N)C1', 'CCC(C)(C)C', 'CS(=O)(=O)N1CCCC(NC(N)=O)C1', 'C[SH](=O)=O', 'CC(C)(C)CCNC(=O)NC1CCCNC1', 'CC(C)(C)CCNC(N)=O', 'CS(=O)(=O)N1CCCCC1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is C1CCNCC1.