Using C#Cc1cc(Cl)c(Nc2nc3ccncc3c3c(OC)nccc23)c(Cl)c1, C[Si](C)(C)N=[N+]=[N-] to produce O=c1[nH]ccc2c(Nc3c(Cl)cc(-c4c[nH]nn4)cc3Cl)nc3ccncc3c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.