Using Cc1ccc(C2(O)CCN(CCCC(O)c3ccc(F)cc3)CC2)cc1 to produce Cc1ccc(C2(O)CCN(CCCC(=O)c3ccc(F)cc3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.