Using [N-]=[N+]=NCC1CN(c2ccc3cc(-c4ccccc4C(F)(F)F)[nH]c(=O)c3c2)C(=O)O1 to produce NCC1CN(c2ccc3cc(-c4ccccc4C(F)(F)F)[nH]c(=O)c3c2)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.