Using CC(C)(C)OC(=O)N[C@@H]1C[C@H]2OCC[C@@]2(C(=O)NCc2cc(C(F)(F)F)ccc2OC(C)(C)C)C1 to produce N[C@@H]1C[C@H]2OCC[C@@]2(C(=O)NCc2cc(C(F)(F)F)ccc2O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.