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