Using CCOC(=O)[C@@H](N=[N+]=[N-])[C@@H](O)[C@H](Cc1ccccc1)NC(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N[C@@H](Cc1ccccc1)[C@H](O)[C@H](N=[N+]=[N-])C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.