['O=Cc1ccco1', 'CC(C)[C@@H](N)C(=O)NNC(=O)[C@H]1COc2ccccc2O1', 'NC(=O)c1ccco1', 'CC(C)CC(=O)NNC(=O)[C@H]1COc2ccccc2O1', 'c1ccc2c(c1)OCCO2', 'CC(C)[C@@H](NC(=O)c1ccco1)C(=O)NNC=O', 'c1ccoc1', 'CC(C)[C@@H](NC=O)C(=O)NNC(=O)[C@H]1COc2ccccc2O1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(CNC(=O)c1ccco1)NNC(=O)[C@H]1COc2ccccc2O1.