Using O=C1Nc2ccc(Cl)cc2C(c2ccccc2F)=CC1Br, [N-]=[N+]=[N-] to produce [N-]=[N+]=NC1C=C(c2ccccc2F)c2cc(Cl)ccc2NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.