Using CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)O, N=C(N)NCCC[C@H](N)C(=O)Nc1ccc([N+](=O)[O-])cc1 to produce CC(C)(C)OC(=O)N1CCC[C@H]1C(=O)N[C@@H](CCCNC(=N)N)C(=O)Nc1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.