Using [N-]=[N+]=[N-], O=C(c1ccc(Br)cc1)c1ccc(OCCCCCCBr)cc1 to produce [N-]=[N+]=NCCCCCCOc1ccc(C(=O)c2ccc(Br)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.