Using CC(C)(C)OC(=O)N1CCc2c(cnc3[nH]nc(Br)c23)C1, Cc1ccccc1 to produce CC(C)(C)OC(=O)N1CCc2c(cnc3[nH]nc(-c4ccccc4)c23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.