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