['CC(C=O)NS(C)(=O)=O', 'Nc1ccc2c(c1)Cc1ccccc1-2', 'CS(N)(=O)=O', 'CCC(=O)Nc1ccc2c(c1)Cc1ccccc1-2', 'C[SH](=O)=O', 'CC(N)C(=O)Nc1ccc2c(c1)Cc1ccccc1-2', 'CC(NS(C)(=O)=O)C(N)=O', 'c1ccc2c(c1)Cc1ccccc1-2']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc2c(c1)Cc1ccccc1-2.