Using COc1cc(C(=O)c2c(C#N)oc3c(OC(C)=O)c(OC)ccc23)cc(OC)c1OC, [N-]=[N+]=[N-] to produce COc1cc(C(=O)c2c(-c3nn[nH]n3)oc3c(O)c(OC)ccc23)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.