Using CCCc1cc(C(OCOC)(C(F)(F)F)C(F)(F)F)ccc1OCCCC(C)OC(C)=O to produce CCCc1cc(C(OCOC)(C(F)(F)F)C(F)(F)F)ccc1OCCCC(C)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.