Using CC(O)C(=O)C1(O)O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1N, O=C[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO to produce CC(O)C(=O)N[C@H]1C(O)O[C@H](CO)[C@@H](O)[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.