['Cc1cccc(C(N)=O)c1N', 'O=[SH](=O)/C=C/c1ccc(Cl)cc1', 'Cc1cccc(C(N)=O)c1', 'NS(=O)(=O)/C=C/c1ccc(Cl)cc1', 'NC=O', 'Cc1ccccc1NS(=O)(=O)/C=C/c1ccc(Cl)cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(/C=C/c1ccccc1)Nc1ccccc1.