Pyrazolo[3,4-d]pyrimidines; adenosine receptor selectivity
โ Scribed by Mary Chebib; Ronald J. Quinn
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 231 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0960-894X
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๐ SIMILAR VOLUMES
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## Abstract Pyrazoloโ[3,4โ__d__]pyrimidineโ4,6โdiones **5** and pyrazolo[4,3โ__d__]pyrimidineโ5,7โdiones **7** were synthesized by Curtius rearrangement of pyrazolic monoโesters **2** and **3** followed by heteroโcyclization __via__ the ureas derivatives **4** and **6** under alkaline conditions.