Using CCOc1ccc(-c2cccc3c2CCC3=O)c(O)c1OC, OCC1(CBr)COC1 to produce CCOc1ccc(-c2cccc3c2CCC3=O)c(OCC2(CO)COC2)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.