['CC(C)(C)N', 'Cc1ccc(S(=O)(=O)N(C)CC=O)s1', 'CC(=O)NC(C)(C)C', 'CNS(=O)(=O)c1ccc(C)s1', 'CC(C)C', 'Cc1ccc(S(=O)(=O)N(C)CC(N)=O)s1', 'Cc1ccc([SH](=O)=O)s1', 'CNCC(=O)NC(C)(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccsc1.