Using Oc1ccc(Nc2ncc(Br)c(Nc3ccccc3)n2)cc1, OCCCN1CCOCC1 to produce Brc1cnc(Nc2ccc(OCCCN3CCOCC3)cc2)nc1Nc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.