Using N#Cc1ccc2[nH]nc(-c3cc4ccccc4o3)c2c1, CCCC[Sn](CCCC)(CCCC)N=[N+]=[N-] to produce c1ccc2oc(-c3n[nH]c4ccc(-c5nn[nH]n5)cc34)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.