Using NN, O=C(O)c1cnc2c(=O)[nH]c3ccccc3n2c1=O to produce NNC(=O)c1cnc2c(=O)[nH]c3ccccc3n2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.