Structure−Activity Relationships of l-Dioxolane Uracil Nucleosides as Anti-Epstein Barr Virus Agents
摘要:
A series of 1,3-dioxolanyluracil analogues was prepared from the dioxolane intermediates 2, and their anti-Epstein Barr virus (anti-EBV) activities were detemined. The potency of L-dioxolane uracil nucleosides against EBV replication is dependent bn the substituents at the 5-position in the following decreasing order: I > Br > Cl > CH3 > CF3 > F. The most active and selective analogue was the iodo derivative (L-I-OddU) with an EC50 value of 0.03 mu M and an EC90 value of 0.16 mu M. There was no cytotoxicity or depletion of mitochondrial DNA in cells after exposure to L-I-OddU at 50 mu M. The action against EBV replication. in H1 cells is time-dependent, and EBV DNA in cells treated with L-I-OddU could rebound to pretreatment levels once the drug was removed. In view of the potent antiviral activity plus favorable toxicity profiles, L-I-OddU may be potentially useful for the treatment of EBV-related infectious diseases as well as for delaying the onset or decreasing the incidence of EBV-associated cancers.
L-beta-dioxolane uridine analogs and methods for treating and preventing virus infections
申请人:Yale University and The University of Georgia Research Foundation, Inc.
公开号:US20010018440A1
公开(公告)日:2001-08-30
The present invention relates to the discovery that certain P-L-dioxolane nucleoside analogs which contain a uracil base, and preferably, a 5-halosubstituted uracil base, exhibit unexpectedly high activity against Epstein-Barr virus (EBV), Varciella-Zoster virus (VZV) and Herpes Virus 8 (HV-8). In particular, the compounds according to the present invention show potent inhibition of the replication of the virus (viral growth) in combination with very low toxicity to the host cells (i.e., animal or human tissue). Compounds are useful for treating EBV, VZV and HV-8 infections in humans.
L-$g(b)-DIOXOLANE URIDINE ANALOGS AND METHODS FOR TREATING AND PREVENTING VIRUS INFECTIONS
申请人:YALE UNIVERSITY
公开号:EP0956021A1
公开(公告)日:1999-11-17
L-BETA-DIOXOLANE URIDINE ANALOGS FOR TREATING AND PREVENTING INFECTIONS BY EBV, VZV AND HV-8
申请人:YALE UNIVERSITY
公开号:EP0956021B1
公开(公告)日:2004-11-03
US6274589B1
申请人:——
公开号:US6274589B1
公开(公告)日:2001-08-14
[EN] L- beta -DIOXOLANE URIDINE ANALOGS AND METHODS FOR TREATING AND PREVENTING VIRUS INFECTIONS<br/>[FR] ANALOGUES DE L- DOLLAR (b)-DIOXOLANE URIDINE ET METHODES DE PREVENTION ET DE TRAITEMENT D'INFECTIONS VIRALES
申请人:YALE UNIVERSITY
公开号:WO1998020879A1
公开(公告)日:1998-05-22
(EN) The present invention relates to the discovery that certain $g(b)-L-dioxolane nucleoside analogs which contain a uracil base, and preferably, a 5-halosubstituted uracil base, exhibit unexpectedly high activity against Epstein-Barr virus (EBV), Varicella-Zoster virus (VZV) and Human Herpes Virus 8 (HV-8). In particular, the compounds according to the present invention show potent inhibition of the replication of the virus (viral growth) in combination with very low toxicity to the host cells (i.e., animal or human tissue). Compounds are useful for treating EBV, VZV and HV-8 infections in humans.(FR) La présente invention concerne la découverte selon laquelle certains analogues de nucléosides de L-$g(b)-dioxolane contenant une base uracile, et de préférence, une base uracile 5-halogénosubstituée, présentent une activité élevée inattendue contre le virus Eptsein-Barr, l'herpèsvirus varicellae et le virus de l'herpès humain 8. Les composés de l'invention présente notamment une forte inhibition de la réplication du virus (croissance du virus) et une toxicité très faible vis-à-vis des cellules hôtes (c'est-à-dire, des tissus animaux ou humains). Ces composés sont utiles pour traiter le virus Epstein-Barr, l'herpèsvirus varicellae et les infection dues à l'herpèsvirus 8 chez les humains.