Using C[C@@H]1CN(C(=O)OC(C)(C)C)CC[C@@H]1c1cc(F)c(F)c2ccoc12 to produce C[C@@H]1CNCC[C@@H]1c1cc(F)c(F)c2ccoc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.