['CSCC=O', 'CN(C)c1ccc(C(F)(F)F)cc1N', 'CS', 'CC(=O)Nc1cc(C(F)(F)F)ccc1N(C)C', 'CSCC(N)=O', 'CN(C)c1ccc(C(F)(F)F)cc1', 'CNC', 'CSCC(=O)Nc1cccc(C(F)(F)F)c1', 'FC(F)F', 'CSCC(=O)Nc1ccccc1N(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.