Using COc1c(OC(F)F)ccc(-c2cccc3c2CCC3=O)c1O, OCC1(CBr)COC1 to produce COc1c(OC(F)F)ccc(-c2cccc3c2CCC3=O)c1OCC1(CO)COC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.