['Cc1cc(Cl)cc(Cl)c1', 'N[C@@H]1c2ccccc2C[C@@H]1O', 'Clc1cccc(Cl)c1', 'CN[C@@H]1c2ccccc2C[C@@H]1O']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc(CN[C@H]2CCc3ccccc32)cc1.