['N#CCCCO', 'Cc1ccc(Cn2nc(C)c(/C=C/C=O)c2C)cc1', 'CCCC#N', 'Cc1ccc(Cn2nc(C)c(/C=C/C(=O)O)c2C)cc1', 'CC(=O)OCCCC#N', 'Cc1ccc(Cn2nc(C)c(C)c2C)cc1', 'Cc1ccc(C)cc1', 'Cc1n[nH]c(C)c1/C=C/C(=O)OCCCC#N', 'Cc1ccccc1', 'Cc1nn(C)c(C)c1/C=C/C(=O)OCCCC#N']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is c1ccc(Cn2cccn2)cc1.