Synthesis of Biologically Active 6-(Tolylhydrazinylidene)Pyrazolo[1,5-a]Pyrimidinones. - Burgart, Yanina V.; Elkina, Natalia А.; Shchegolkov, Evgeny V.; Krasnykh, Olga P.; Maslova, Vera V.; Triandafilova, Galina A.; Solodnikov, Sergey Yu.; Makhaeva, Galina F.; Serebryakova, Olga G.; Rudakova, Elena V.; Saloutin, Victor I. (Chemistry of Heterocyclic Compounds, 2020)