Using CCCNc1ccc(CC(=O)OCC)cc1, CCOC(=O)c1ccccc1CBr to produce CCCN(Cc1ccccc1C(=O)OCC)c1ccc(CC(=O)OCC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.