Using O=N[O-], Nc1c(C(=O)CCc2ccccc2)cccc1C(F)(F)F to produce Oc1c(Cc2ccccc2)nnc2c(C(F)(F)F)cccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.