Using CC(C)(C)OC(=O)c1nc(Cl)ccc1Br, COC(=O)c1cccc2c1CNCC2 to produce CC(C)(C)OC(=O)c1nc(N2CCc3cccc(C(=O)O)c3C2)ccc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.