Using CCCCCNc1nc(N)nc(C)c1Cc1ccc(CC(=O)O)cc1F, O=C([O-])O to produce CCCCCNc1nc(N)nc(C)c1Cc1ccc(CC(=O)OC)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.