Using OO, O=C(C[C@@H](c1ccc(OCCOc2ccc(C(F)(F)F)cc2)cc1)c1ccon1)N1C(=O)OC[C@@H]1Cc1ccccc1 to produce O=C(O)C[C@@H](c1ccc(OCCOc2ccc(C(F)(F)F)cc2)cc1)c1ccon1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.