['O=C/C=C/c1cccs1', 'CON(C)S(=O)(=O)c1ccc(N)cc1', 'NC(=O)/C=C/c1cccs1', 'CON(C)S(=O)(=O)c1ccccc1', 'Cc1cccs1', 'CON(C)S(=O)(=O)c1ccc(NC(C)=O)cc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(/C=C/c1cccs1)Nc1ccccc1.