Using O=C1c2ccccc2C(=O)N1CC1CO1, [N-]=[N+]=[N-] to produce [N-]=[N+]=NCC(O)CN1C(=O)c2ccccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.