Using CC(C)(C)OC(=O)C1CCN(C(=O)C2CN(c3ccc(-c4noc(=O)[nH]4)cc3)C(=O)O2)CC1 to produce CC(C)(C)OC(=O)C1CCN(C(=O)C2CN(c3ccc(C(=N)N)cc3)C(=O)O2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.