Using COC(=O)c1ccc(CCC(Br)C=O)cc1, Nc1cc(O)nc(N)n1 to produce COC(=O)c1ccc(CCc2c[nH]c3nc(N)[nH]c(=O)c23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.