Using Oc1ccc2ccc(OCc3ccccc3)cc2c1, O=C(CBr)N1CCC(Cc2ccccc2)CC1 to produce Oc1ccc2ccc(OCCN3CCC(Cc4ccccc4)CC3)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.