['O=[SH](=O)c1ccsc1', 'Cc1nc([C@H]2CCCN2)cs1', 'Cc1nccs1', 'O=S(=O)(c1ccsc1)N1CCCC1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S(=O)(c1ccsc1)N1CCC[C@@H]1c1cscn1.