Using COc1c(OC(F)F)ccc(-c2ccc3c(c2)COC3=O)c1O, CCI to produce CCOc1c(-c2ccc3c(c2)COC3=O)ccc(OC(F)F)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.