Using O=Cc1ccc2c(c1)CCO2, COC(=O)CN=[N+]=[N-] to produce COC(=O)C(=Cc1ccc2c(c1)CCO2)N=[N+]=[N-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.