Using Nc1n[nH]c2cc(Br)ccc12, CCOC(=O)C(C(=O)OCC)c1ccccc1 to produce Oc1nc2c3ccc(Br)cc3nn2c(O)c1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.