Using CC(=O)Oc1c(C)cc(-c2c3ccccc3c(Br)c3sc(C)c(C)c23)cc1C to produce Cc1cc(-c2c3ccccc3c(Br)c3sc(C)c(C)c23)cc(C)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.