Using COC(=O)[C@@H]1C[C@H]1CN1CCN(c2csc3cc(C(F)(F)F)ccc23)CC1 to produce O=C(O)[C@@H]1C[C@H]1CN1CCN(c2csc3cc(C(F)(F)F)ccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.