Using ClCCl, COC(=O)[C@@H](NC(c1ccccc1)(c1ccccc1)c1ccccc1)[C@@H](C)N=[N+]=[N-] to produce COC(=O)[C@@H](N)[C@@H](C)N=[N+]=[N-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.