Using O=C1OCC[C@@H]1Oc1ccc(Br)nc1, CC(C)(C)OC(=O)N1CCC(N)CC1 to produce CC(C)(C)OC(=O)N1CCC(NC(=O)[C@H](CCO)Oc2ccc(Br)nc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.