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One-pot synthesis and antiproliferative evaluation of pyrazolo[3,4-d]pyrimidine derivatives

✍ Scribed by Yu-Ying Huang; Li-Ya Wang; Chun-Hsi Chang; Yueh-Hsiung Kuo; Kimiyoshi Kaneko; Hiroyuki Takayama; Masayuki Kimura; Shin-Hun Juang; Fung Fuh Wong


Book ID
119375779
Publisher
Elsevier Science
Year
2012
Tongue
French
Weight
254 KB
Volume
68
Category
Article
ISSN
0040-4020

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A convenient synthesis of pyrazolo[3,4-d
✍ M. El Haddad; M. Soukri; S. Lazar; A. Bennamara; G. Guillaumet; M. Akssira πŸ“‚ Article πŸ“… 2000 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 470 KB

## Abstract Pyrazolo‐[3,4‐__d__]pyrimidine‐4,6‐diones **5** and pyrazolo[4,3‐__d__]pyrimidine‐5,7‐diones **7** were synthesized by Curtius rearrangement of pyrazolic mono‐esters **2** and **3** followed by hetero‐cyclization __via__ the ureas derivatives **4** and **6** under alkaline conditions.