Using CI, CC(C)(C)OC(=O)N1CCN2C(=O)c3c(cccc3C(F)(F)F)[C@H]2C1 to produce CC(C)(C)OC(=O)N1CCN2C(=O)c3c(C(F)(F)F)cccc3C2(C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.