Using C1CCOC1, CC(C)(C)OC(=O)N1CCN(C(CN)c2ccccc2F)CC1 to produce CNCC(c1ccccc1F)N1CCN(C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.