['N#Cc1cccc(N)c1', 'O=C/C=C/c1ccc2c(c1)CCO2', 'N#Cc1ccccc1', 'NC(=O)/C=C/c1ccc2c(c1)CCO2', 'Cc1ccc2c(c1)CCO2', 'CC(=O)Nc1cccc(C#N)c1']
The Murcko scaffold (minmal number of connected rings) of <smiles></smiles> is O=C(/C=C/c1ccc2c(c1)CCO2)Nc1ccccc1.