['CC(C)COCCCN', 'O=CNCC(=O)Nc1ccc(F)c(F)c1F', 'CC(C)COCCCNC=O', 'NCC(=O)Nc1ccc(F)c(F)c1F', 'Nc1ccc(F)c(F)c1F', 'CC(C)COCCCNC(=O)NCC=O', 'CC(C)C', 'O=C(CNC(=O)NCCCO)Nc1ccc(F)c(F)c1F', 'CC(C)CO', 'CCCNC(=O)NCC(=O)Nc1ccc(F)c(F)c1F', 'CCCOCC(C)C', 'NC(=O)NCC(=O)Nc1ccc(F)c(F)c1F', 'CC(C)COCCCNC(N)=O', 'CC(=O)Nc1ccc(F)c(F)c1F', 'Fc1cccc(F)c1F', 'CC(C)COCCCNC(=O)NCC(N)=O']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccccc1.