['C=CC', 'CN(C)CCNC(=S)Nc1cccc(O)c1', 'C=CCO', 'CN(C)CCNC(=S)Nc1ccccc1', 'CCN(C)C', 'C=CCOc1cccc(NC(N)=S)c1', 'CNC', 'C=CCOc1cccc(NC(=S)NCC)c1', 'CN(C)CCNC(N)=S', 'C=CCOc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.