Using OCc1cccnc1, COC(=O)c1ccc(CBr)cc1-c1ccccc1 to produce COC(=O)c1ccc(COCc2cccnc2)cc1-c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.