Using CCOC(=O)CNC(=O)c1c(O)[nH]c(=O)n(Cc2ccccc2)c1=O, COc1cccc(CBr)c1 to produce COc1cccc(Cn2c(O)c(C(=O)NCC(=O)O)c(=O)n(Cc3ccccc3)c2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.