Using NC[C@H]1O[C@H](O[C@H]2[C@H](O[C@@H]3O[C@H](CO)[C@H](O)[C@H]3O)[C@@H](O)[C@H](N)C[C@@H]2N)[C@H](N)[C@@H](O)[C@@H]1O to produce NC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](N)C[C@@H]2N)[C@H](N)[C@@H](O)[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.