Using COC(=O)c1ccc(CBr)cc1, Oc1cccc(CNc2ccccc2)c1 to produce COC(=O)c1ccc(COc2cccc(CNc3ccccc3)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.