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Communication | Regular issue | Vol 6, No. 7, 1977, pp.945-947
Published online, 1st January, 1970
DOI: 10.3987/R-1977-07-0945
A Simple Synthesis of 3-Aryl-1,5,7-trimethylpyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-diones

Keitaro Senga,* Junko Sato, and Sadao Nishigaki

*Pharmaceutical Institute, School of Medicine, Keio University, Shinanomachi 35, Shinjuku, Tokyo 160-0016, Japan

Abstract

Treatment of 6-(benzylidene-1’-methylhydrazino)-1,3-dimethyluracils with thionyl chloride afforded the corresponding 3-arylpyrazolo[3,4-d]pyrimidines.