['O=[SH](=O)CC1CC1', 'C[C@H]1CS(=O)(=O)C[C@H]1N', 'NS(=O)(=O)CC1CC1', 'C[C@@H]1CCS(=O)(=O)C1', 'C1CC1', 'C[C@H]1CS(=O)(=O)C[C@H]1NS(C)(=O)=O']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=S1(=O)CC[C@H](NS(=O)(=O)CC2CC2)C1.