['Nc1ccc(-n2cncn2)cc1', 'O=[SH](=O)/C=C/c1ccc(Cl)cc1', 'c1ccc(-n2cncn2)cc1', 'NS(=O)(=O)/C=C/c1ccc(Cl)cc1', 'c1nc[nH]n1', 'O=S(=O)(/C=C/c1ccc(Cl)cc1)Nc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(/C=C/c1ccccc1)Nc1ccc(-n2cncn2)cc1.