Using CCOc1cccc(-c2cc(=O)[nH]c3ccc(Br)cc23)c1, C[O+](C)C to produce CCOc1cccc(-c2cc(OC)nc3ccc(Br)cc23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.