Using O=C(Cl)N1CC(Oc2ccc(Br)cc2)C1, c1ccc(CN2CCNCC2)cc1 to produce O=C(N1CCN(Cc2ccccc2)CC1)N1CC(Oc2ccc(Br)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.