Using N=C(N)c1ccc(NC(=O)[C@H](O)[C@H]2OCCN(c3ccc(NC(=O)COCc4ccccc4)cc3)C2=O)cc1 to produce N=C(N)c1ccc(NC(=O)[C@H](O)[C@H]2OCCN(c3ccc(NC(=O)CO)cc3)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.