Using COc1ccc(N)cc1OC, O=C(O)C(=C1C(=O)Nc2ccc(Br)cc21)c1ccccc1 to produce COc1ccc(NC(=O)C(=C2C(=O)Nc3ccc(Br)cc32)c2ccccc2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.