Using NC(=O)c1ncn([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2O)c1C(N)=O, O=C([O-])O to produce NC(=O)c1ncn([C@@H]2O[C@H](C(=O)O)[C@@H](O)[C@H]2O)c1C(N)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.