Using CCOC(=O)CC(=O)OCC, CC(C)c1nn2ccccc2c1C(=O)CBr to produce CCOC(=O)C(CC(=O)c1c(C(C)C)nn2ccccc12)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.