Using COc1ccc2[nH]cc(C3=C(Br)C(=O)NC3=O)c2c1, c1ccc2[nH]ccc2c1 to produce COc1ccc2[nH]cc(C3=C(c4c[nH]c5ccccc45)C(=O)NC3=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.