Using CC(=O)OC(C)(C)C, COC(=O)[C@@H](O)c1c(C)nc2cc(-c3cccc(Br)c3)nn2c1Cl to produce COC(=O)[C@@H](OC(C)(C)C)c1c(C)nc2cc(-c3cccc(Br)c3)nn2c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.