Using BrCc1ccccc1, CN(CC(O)CN(C)C(=O)OC(C)(C)C)C(=O)OC(C)(C)C to produce CN(CC(CN(C)C(=O)OC(C)(C)C)OCc1ccccc1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.