Using Cn1c(N)c(N)c(=O)[nH]c1=O, Cn1c(N)c(N=O)c(=O)[nH]c1=O to produce Cn1c(=O)[nH]c(=O)c2nn[nH]c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.