𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Notizen Heterocyclic β-Enamino Esters, 39. Synthesis of 1H-Pyrazolo[3,4-d]pyrimidines

✍ Scribed by Wamhoff, Heinrich ;Ertas, Mümtaz ;Atta, Sanaa M. S.

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
380 KB
Volume
1985
Category
Article
ISSN
0947-3440

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Synthesis of allopurinol and 4-amino-1H-
Synthesis of allopurinol and 4-amino-1H-pyrazolo[3,4-d]pyrimidine N1- and N2-(β-D-arabinofuranosides)
✍ Seela, Frank ;Winter, Holger 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 547 KB

## Abstract Allopurinol and 4‐amino‐1H‐pyrazolo[3,4‐d]pyrimidine N^1^‐and N^2^‐(D‐arabinofuranosides) have been synthesized. Nucleobase anion glycosylation of 4‐methoxy‐1H‐pyrazolo[3,4‐d]‐pyrimidine (7) with the α‐D‐arabinofuranosyl chloride 6a proceeds stereoselectively and affords the N^1^‐(β‐D‐n

ChemInform Abstract: Synthesis of 4-Subs
ChemInform Abstract: Synthesis of 4-Substituted 1-((2,3-Dihydroxy-1-propoxy)methyl)-1H- pyrazolo(3,4-d)pyrimidines.
✍ M. L. TAHA; H. B. LAZREK 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB 👁 1 views

Synthesis of 4-Substituted 1-((2,3-Dihydroxy-1-propoxy)methyl)-1Hpyrazolo (3,4-d)pyrimidines. -The regioselective synthesis of a series of acyclonucleosides of pyrazolopyrimidines (cf. (IV), (V), (VII), (IX)) is described. The obtained compounds are evaluated for their cytotoxicity and anti-HIV act

A new regioselective synthesis and bioac
A new regioselective synthesis and bioactivity of 1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one derivatives
✍ Hong-Qing Wang; Zhao-Jie Liu; Li-Min Yang; Ming-Wu Ding 📂 Article 📅 2004 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 154 KB

## Abstract A series of new 1__H__‐pyrazolo[3,4‐__d__]pyrimidin‐4(__5H__)‐one Derivatives **5** has been designed and regio‐selectively synthesized __via__ a tandem aza‐Wittig reaction. The structures of all compounds prepared have been confirmed by ^1^H NMR, IR, EI‐MS spectroscopy and elemental an

ChemInform Abstract: Synthesis of 1,5-Di
ChemInform Abstract: Synthesis of 1,5-Dihydro-3-methyl-6-trihalomethyl-4H-pyrazolo [3,4-d]pyrimidin-4-ones.
✍ Mikhail V. Vovk; Andrei V. Bol'but; Vyacheslav I. Boiko; Vladimir V. Pirozhenko; 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB 👁 1 views

## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v

Studies on uracils: A facile one-pot syn
Studies on uracils: A facile one-pot synthesis of pyrazolo[3,4-d]pyrimidines
✍ P. J. Bhuyan; H. N. Borah; K. C. Lekhok; J. S. Sandhu 📂 Article 📅 2001 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 31 KB

## Abstract The reaction of 6‐hydrazino uracils **1** and nitrones **2** result in an efficient one‐pot synthesis of pyrazolo[3,4‐__d__]pyrimidines **3** in excellent yields. The isolation of the by‐product aniline from the reaction mixture supported the plausible mechanism for the formation of pyr