Potential Multifunctional Inhibitors of HIV-1 Reverse Transcriptase. Novel [AZT]-[TSAO-T] and [d4T]-[TSAO-T] Heterodimers Modified in the Linker and in the Dideoxynucleoside Region
作者:Sonsoles Velázquez、Victoria Tuñón、María Luisa Jimeno、Cristina Chamorro、Erik De Clercq、Jan Balzarini、María José Camarasa
DOI:10.1021/jm991092+
日期:1999.12.1
In an attempt to combine the anti-HIV-inhibitory capacity of nucleoside reverse transcriptase (RT) inhibitors (NRTI) and non-nucleoside RT inhibitors (NNRTI), several heterodimer analogues of the previously reported [AZT]-(CH(2))(3)-[TSAO-T] prototype have been prepared. In these novel series, other NRTIs, an expanded range of linkers with different conformational freedom and other attachment sites for these linkers on the base part of the NRTI analogue have been explored. Moreover, in order to circumvent the dependence of the NRTI moiety of the heterodimer an activation by cellular nucleoside kinases, novel heterodimers in which the NRTI is bearing a masked monophosphate group at the 5'-position are described. Among the novel heterodimers, several derivatives show a potent anti-HIV-1 activity, which proved comparable, or even superior, to that of the AZT heterodimer prototype. The nature of the NRTI was important far the eventual anti-HIV-1 activity. In particular, the d4T heterodimer derivative containing a propyl linker between the N-3 positions of the base of TSAO-T and d4T was similar to 5- to 10-fold more inhibitory to HIV-1 than the corresponding AZT heterodimer prototype.
Synthesis and Anti-HIV Activity of [ddN]-[ddN] Dimers and Benzimidazole Nucleoside Dimers
In an attempt to combine the HIV‐inhibitory capacity of different 2′,3′‐dideoxynucleoside (ddN) analogs, we have designed and synthesized several dimers of [AZT]‐[AZT] and [AZT]‐[d4T]. In addition, we also synthesized the dimers of 1‐(1H‐benzimidazol‐1‐yl)‐1‐deoxy‐β‐D‐ribofuranose. The in vitro anti‐HIV activity of these compounds on a pseudotype virus, pNL4‐3.Luc.R‐E‐, in the 293T cells has been determined
为了结合不同 2',3'-双脱氧核苷 (ddN) 类似物的 HIV 抑制能力,我们设计并合成了 [AZT]-[AZT] 和 [AZT]-[d4T] 的几种二聚体。此外,我们还合成了1-(1H-苯并咪唑-1-基)-1-脱氧-β-D-呋喃核糖的二聚体。已确定这些化合物对 293T 细胞中的假型病毒 pNL4-3.Luc.R-E- 的体外抗 HIV 活性。在这些化合物中,2,2'-(丙烷-1,3-二基)双[1-(β-D-呋喃核糖基)-1H-苯并咪唑](3)显示出最高的抗HIV活性,其作用与AZT相似。