['Oc1ccccc1', 'C[C@@H](O)c1ccc(F)cc1', 'c1ccccc1', 'OC[C@@H](O)c1ccc(F)cc1', 'Fc1ccccc1', 'OCCOc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc(CCOc2ccccc2)cc1.