Using C=CC[C@@](CNC)(c1ccc(Cl)c(Cl)c1)N(C)C(=O)OC(C)(C)C, O=C(O)CC(F)(F)F to produce C=CC[C@@](CN(C)C(=O)CC(F)(F)F)(c1ccc(Cl)c(Cl)c1)N(C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.