Using Brc1ccc(C2(Cc3ccccc3)c3ccccc3-c3nccn32)cc1, CC(C)=O to produce CC(C)(O)c1ccc(C2(Cc3ccccc3)c3ccccc3-c3nccn32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.