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Synthesis of derivatives of pyrazolo[3,4-d]pyrimidin-3-ylacetic acid and their nucleosides

โœ Scribed by Yu. N. Bulychev; I. A. Korbukh; M. N. Preobrazhenskaya


Book ID
112346047
Publisher
Springer US
Year
1981
Tongue
English
Weight
721 KB
Volume
17
Category
Article
ISSN
0009-3122

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๐Ÿ“œ SIMILAR VOLUMES


A convenient synthesis of pyrazolo[3,4-d
โœ M. El Haddad; M. Soukri; S. Lazar; A. Bennamara; G. Guillaumet; M. Akssira ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 470 KB

## Abstract Pyrazoloโ€[3,4โ€__d__]pyrimidineโ€4,6โ€diones **5** and pyrazolo[4,3โ€__d__]pyrimidineโ€5,7โ€diones **7** were synthesized by Curtius rearrangement of pyrazolic monoโ€esters **2** and **3** followed by heteroโ€cyclization __via__ the ureas derivatives **4** and **6** under alkaline conditions.