Using CCOC(=O)C(=O)NCc1cc(Br)cc2nc(OC)c(OC)nc12 to produce COc1nc2cc(Br)cc(CNC(=O)C(=O)O)c2nc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.