Using C[C@H]1CN(C(=O)OC(C)(C)C)CCN1C1c2ccc(C(F)(F)F)cc2CC1O, CI to produce COC1Cc2cc(C(F)(F)F)ccc2C1N1CCN(C(=O)OC(C)(C)C)C[C@@H]1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.