['CC(C)(C)N', 'CC(C=O)NS(=O)(=O)N1CC(C)OC(C)C1', 'CCC(=O)NC(C)(C)C', 'CC1CN(S(N)(=O)=O)CC(C)O1', 'CC(C)C', 'CC1CN(S(=O)(=O)NC(C)C(N)=O)CC(C)O1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is C1COCCN1.