Using CCOC(=O)c1c(Cl)[nH]c(=O)c(I)c1Oc1cc(C)cc(C)c1, [N-]=[N+]=[N-] to produce CCOC(=O)c1c(N=[N+]=[N-])[nH]c(=O)c(I)c1Oc1cc(C)cc(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.