['CC(C)(C)O', 'Cc1cc2cc(CNC=O)ccc2[nH]1', 'CC(C)(C)OC=O', 'Cc1cc2cc(CN)ccc2[nH]1', 'CC(C)C', 'Cc1cc2cc(CNC(=O)O)ccc2[nH]1', 'CC(C)(C)OC(N)=O', 'Cc1ccc2[nH]c(C)cc2c1', 'CNC(=O)OC(C)(C)C', 'Cc1cc2ccccc2[nH]1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc2[nH]ccc2c1.