Synthesis, Biological Evaluation, and Structure Analysis of a Series of New 1,5-Anhydrohexitol Nucleosides
摘要:
In view of the selective anti-HSV activity of 1,5-anhydro-2,3-dideoxy-2-(5-iodouracil-1-yl)-D-arabino-hexitol,(1) a series of novel 1,5-anhydrohexitol nucleosides were synthesized and evaluated for their inhibitory activity against several viruses. The 5-iodouracil 3 and the 5-ethyluracil 4 derivatives are highly selective TK-dependent inhibitors of HSV-1 and HSV-2. Broad anti-herpes virus activity was noticed for 5-fluorocytosine 6 and 2,6-diaminopurine 10 analogues. From a transport study of 3, using the thymidine influx competition method, one can conclude that intracellular uptake of this compound most probably occurs by passive diffusion. X-ray analysis of compounds 3 and 9 showed that the heterocyclic base of 1,5-anhydrohexitol pyrimidine and purine is placed in the axial position and that the sugar ring adopts a slightly distorted chair conformation.
The replacement of one or more nucleotide residues in the potentα‐thrombin‐bindingaptamer NU172 with hexitol‐based nucleotides has been devised to study the effect of these substitutions on the physicochemical and functional properties of the anticoagulant agent. The incorporation of single hexitolnucleotides at the T9 and G18 positions of NU172 substantially retained the physicochemical features
1,5-ANHYDROHEXITOL NUCLEOSIDE ANALOGUES AND PHARMACEUTICAL USE THEREOF
申请人:Stichting REGA V.Z.W.
公开号:EP0646125B1
公开(公告)日:1998-05-27
US5607922A
申请人:——
公开号:US5607922A
公开(公告)日:1997-03-04
US5668113A
申请人:——
公开号:US5668113A
公开(公告)日:1997-09-16
Synthesis and antiherpes virus activity of 1,5-anhydrohexitol nucleosides
作者:Ilse Verheggen、Arthur Van Aerschot、Suzanne Toppet、Robert Snoeck、Gerard Janssen、Jan Balzarini、Erik De Clercq、Piet Herdewijn
DOI:10.1021/jm00066a013
日期:1993.7
of 1,5-anhydrohexitol nucleosides is described. These nucleoside analogues were obtained by alkylation of the heterocyclic bases with the tosylate 10 or by alkylation of the bases with the alcohol 12 under Mitsunobu conditions. The compounds were evaluated for antiviral and cytostatic activity. Highly selective activity against herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) was noted for 1,5-anhydro-2