Using C=CC(O)(COCc1cc(C(F)(F)F)cc(C(F)(F)F)c1)c1ccccc1C=COC to produce C=CC1(COCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)OCCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.