['OCCO', 'O=CC[C@H]1Sc2ccc(C(F)(F)F)cc2NC1=O', 'CCO', 'O=C(O)C[C@H]1Sc2ccc(C(F)(F)F)cc2NC1=O', 'CC(=O)OCCO', 'O=C1CSc2ccc(C(F)(F)F)cc2N1', 'FC(F)F', 'O=C(C[C@H]1Sc2ccccc2NC1=O)OCCO']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C1CSc2ccccc2N1.