['CO', 'CC(C)C[C@H](C)NCc1cccs1', 'NCc1cccs1', 'CCCC(C)(C)OC', 'Cc1cccs1', 'COC(C)(C)C[C@H](C)N', 'c1ccsc1', 'CN[C@@H](C)CC(C)(C)OC']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccsc1.