Using C#Cc1cc2c(C)nc(N)nc2n(CC)c1=O, [N-]=[N+]=[N-] to produce CCn1c(=O)c(-c2cnn[nH]2)cc2c(C)nc(N)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.