['Nc1cccc(I)c1', 'O=C/C=C/c1c(Cl)nc2sccn12', 'Ic1ccccc1', 'NC(=O)/C=C/c1c(Cl)nc2sccn12', 'Cc1c(Cl)nc2sccn12', 'CC(=O)Nc1cccc(I)c1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(/C=C/c1cnc2sccn12)Nc1ccccc1.