The synthesis of New 5-R-aminoazolo[1,5-a]pyrimidin-7-ones from an N,S-acetal Derivative of Meldrum's Acid. - Lyapustin, Daniil N.; Marusich, Irina V.; Fayzullina, Dilya F.; Ulomsky, Evgeny N.; Matern, Anatoly I.; Rusinov, Vladimir L. (Chemistry of Heterocyclic Compounds, 2023)