Using CCCOC(=O)N1CCN(C(=O)C(NC(=O)OCc2ccccc2)C(C)F)CC1 to produce CCCOC(=O)N1CCN(C(=O)C(N)C(C)F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.