Using C#CCCCCN(C(=O)C(=O)N1CCc2cc(OC)c(Br)cc2C1C(=O)OCC)C(C)(C)C to produce C#CCCCCN(C(=O)C(=O)N1CCc2cc(OC)c(Br)cc2C1C(=O)O)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.