Using COC(=O)CC1CCc2ccc(O)cc2C1, N#Cc1ccc(CBr)cc1 to produce COC(=O)CC1CCc2ccc(OCc3ccc(C#N)cc3)cc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.