Using CC(C)c1c[nH]c2ccc(Oc3c(C(F)(F)F)cc(C=O)cc3C(F)(F)F)cc12 to produce CC(C)c1c[nH]c2ccc(Oc3c(C(F)(F)F)cc(CO)cc3C(F)(F)F)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.