['CS(=O)(=O)NCC=O', 'Nc1ccc(-n2cccn2)cc1', 'CS(N)(=O)=O', 'CC(=O)Nc1ccc(-n2cccn2)cc1', 'C[SH](=O)=O', 'NCC(=O)Nc1ccc(-n2cccn2)cc1', 'CS(=O)(=O)NCC(N)=O', 'c1ccc(-n2cccn2)cc1', 'c1cn[nH]c1', 'CS(=O)(=O)NCC(=O)Nc1ccccc1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc(-n2cccn2)cc1.