Using COC(=O)CN=[N+]=[N-], COc1cc(C=O)cc(OC)c1OC to produce COC(=O)C(=Cc1cc(OC)c(OC)c(OC)c1)N=[N+]=[N-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.