Using CCc1nn(-c2ccccc2)c(N)c1C(N)=O, NC(N)=O to produce CCc1nn(-c2ccccc2)c2[nH]c(=O)[nH]c(=O)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.