['CS(N)(=O)=O', 'CCCN1CCN(c2ccc(O)cc2)CC1', 'CCCNS(C)(=O)=O', 'Oc1ccc(N2CCNCC2)cc1', 'C[SH](=O)=O', 'NCCCN1CCN(c2ccc(O)cc2)CC1', 'Oc1ccccc1', 'CS(=O)(=O)NCCCN1CCNCC1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc(N2CCNCC2)cc1.