Using [N-]=[N+]=[N-], O=C(Nc1ccc(F)c(C(F)(F)F)c1)c1cccc2cc(Cc3cc(Cl)ncn3)ccc12 to produce [N-]=[N+]=Nc1cc(Cc2ccc3c(C(=O)Nc4ccc(F)c(C(F)(F)F)c4)cccc3c2)ncn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.