𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Pyrazolo[3,4-d]pyrimidine 2′ -Deoxy- and 2′,3′ -Dideoxyribonucleosides: Studies on the glycosylation of 4-methoxypyrazolo[3,4-d]pyrimidine

✍ Scribed by Frank Seela; Holger Winter; Marianne Möller

Publisher
John Wiley and Sons
Year
1993
Tongue
German
Weight
553 KB
Volume
76
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

Osnabriick

(25.11.93

📜 SIMILAR VOLUMES

Synthesis of 4-substituted 2-aminopyrrol
Synthesis of 4-substituted 2-aminopyrrolo[2,3-d]pyrimidine 2′,3′-dideoxyribonucleosides
✍ Seela, Frank ;Muth, Heinz-Peter 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 578 KB

## Abstract A number of new 2‐aminopyrrolo[2,3‐__d__]pyrimidine __N__‐7‐(2′,3′‐dideoxyribonucleosides) (11–13 and 15) were synthesized. These are related to 7‐deaza‐2′,3′‐dideoxyguanosine (14), but carry various substituents at C‐4. 2‐Amino‐4‐chloro‐7‐(2′,3′‐dideoxy‐β‐D‐__glycero__‐pentofuranosyl)‐

A convenient synthesis of pyrazolo[3,4-d
A convenient synthesis of pyrazolo[3,4-d]pyrimidine-4,6-dione and pyrazolo[4,3-d]pyrimidine-5,7-dione derivatives
✍ M. El Haddad; M. Soukri; S. Lazar; A. Bennamara; G. Guillaumet; M. Akssira 📂 Article 📅 2000 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 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.