Using CC(O)(c1cccc(C(F)(F)F)c1)c1cc(Cl)ccc1O, O=C(O)C(Cl)Cl to produce CC1(c2cccc(C(F)(F)F)c2)OC(C(=O)O)Oc2ccc(Cl)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.