Using COC(=O)CC1CN(C(=O)OC(C)(C)C)CCN1, O=[N+]([O-])c1cccnc1Cl to produce CC(C)(C)OC(=O)N1CCN2c3ncccc3NC(=O)CC2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.