Using CC(C)(C)OC(=O)N(C(=O)OC(C)(C)C)C1=N[C@@]2(c3cc(N=[N+]=[N-])cs3)COCC[C@H]2CS1 to produce CC(C)(C)OC(=O)N(C(=O)OC(C)(C)C)C1=N[C@]2(c3cc(N)cs3)COCC[C@H]2CS1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.