Using CCOC(=O)C(F)(F)C(OC(=O)C12CC3CC(CC(C3)C1)C2)c1ccccc1 to produce O=C(OC(c1ccccc1)C(F)(F)C(=O)[O-])C12CC3CC(CC(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.