Using O=C1c2ccccc2-c2onc3c(Br)cc(Br)c1c23, Nc1ccc(C(=O)O)cc1 to produce O=C(O)c1ccc(Nc2cc(Br)c3noc4c3c2C(=O)c2ccccc2-4)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.