C4-Substituted 1-.beta.-D-ribofuranosylpyrazolo[3,4-d]pyrimidines as adenosine agonist analogs
作者:Harriet W. Hamilton、James A. Bristol
DOI:10.1021/jm00365a010
日期:1983.11
The synthesis of four novel C4-substituted 1-beta-D-ribofuranosylpyrazolo[3,4-d]pyrimidines is reported, and the compounds were examined as adenosine receptor agonist analogues. Neither receptor affinity nor biological activity was as potent as the purine counterparts. Adenosine agonists appear to be sensitive to modification of the purine base, with a nitrogen atom in the 7 position necessary for efficacy.
Jain, S. M.; Kumar, Ashwani; Purnima, Basant, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 390 - 393
作者:Jain, S. M.、Kumar, Ashwani、Purnima, Basant、Anand, K. K.、Saxena, Ajit K.、Atal, C. K.
DOI:——
日期:——
JAIN, S. M.;KUMAR, ASHWANI;PURNIMA, BASANT;ANAND, K. K.;SAXENA, AJIT K.;A+, INDIAN J. CHEM. B, 27,(1988) N 4, C. 390-393
作者:JAIN, S. M.、KUMAR, ASHWANI、PURNIMA, BASANT、ANAND, K. K.、SAXENA, AJIT K.、A+
DOI:——
日期:——
Nucleosides, 38
<sup>1)</sup>
<b>The Ribonucleosides of Allopurinol</b>
作者:Frieder W. Lichtenthaler、Eckehard Cuny
DOI:10.1002/cber.19811140505
日期:1981.5
Of the various conceivable ribonucleosides of allopurinol, the N-1-, N-2-, and N-5-isomers (9c-11c) as well as the 1, 5-and 2,5-bis-ribosylated derivatives 6c and 7c have been prepared via stannic chloride-induced glycosylation of bis (trimethylsilyl)allopurinol 4 with acylated ribofuranoses (5). Trimethylsilyl triflate as catalyst in addition produced the O4-ribosylated isomer 8a. – The structures
在别嘌呤醇的各种可能的核糖核苷中,N -1-,N -2-和N -5-异构体(9c-11c)以及1、5和2,5-双核糖基化衍生物6c和7c已经通过氯化锡诱导双(三甲基甲硅烷基)alalpurinol 4与酰化的呋喃核糖核酸酶的糖基化反应制备了(5)。三氟甲磺酸三甲基甲硅烷基酯作为催化剂还产生了O 4-核糖基化的异构体8a。–从UV,1 H和13 C NMR数据确定了产品的结构。–评估了它们的黄嘌呤氧化酶抑制活性。
Khan; Mishra; Guru, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1990, vol. 29, # 1, p. 40 - 46