Using Oc1cccc(C=Cc2ccc3ccc(Br)cc3n2)c1, COC(=O)C(C)Br to produce COC(=O)C(C)Oc1cccc(C=Cc2ccc3ccc(Br)cc3n2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.