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