Using O=C1CCC(NC(=O)[C@H]2CCCN(c3ccccc3)C2)CC1, [N-]=[N+]=[N-] to produce O=C1CCC(NC(=O)[C@H]2CCCN(c3ccccc3)C2)CCN1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.