Using CCOC(=O)C1CCN(C(=O)OC(C)(C)C)CC1=O, N=C(N)Nc1ccc(-c2cnco2)cc1 to produce CC(C)(C)OC(=O)N1CCc2c(O)nc(Nc3ccc(-c4cnco4)cc3)nc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.