['CC(C)CNC=O', 'CNCc1ccc(OC)c(F)c1', 'CC(C)CN', 'COc1ccc(CN(C)C=O)cc1F', 'CO', 'CC(C)CNC(=O)N(C)Cc1cccc(F)c1', 'CNC(=O)NCC(C)C', 'COc1ccc(C)cc1F', 'CC(C)C', 'COc1ccc(CN(C)C(N)=O)cc1F', 'COc1ccccc1F', 'CC(C)CNC(=O)N(C)C']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.