Using [N-]=[N+]=NC(c1ccccc1)c1cc(Br)cc(OCCCCCCCCC2OCCO2)c1 to produce NC(c1ccccc1)c1cc(Br)cc(OCCCCCCCCC2OCCO2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.