The present invention relates to certain bezimidazole derivatives and their use in medical therapy particularly for the treatment or prophylaxis of virus infections such as those caused by herpes viruses. The invention also relates to the preparation of the benzimidazole derivatives and pharmaceutical formulations containing them.
Chemoenzymatic Synthesis of Modified 2′-Deoxy-2′-fluoro-β-d-arabinofuranosyl Benzimidazoles and Evaluation of Their Activity Against Herpes Simplex Virus Type 1
ribo- and 2′-deoxyribobenzimidazoles (40–55% vs 60–90%). The compounds obtained were tested against the herpes simplex virus type 1, by using the Vero E6 cells. 5-Methoxy-4,6-difluoro-1-β-d-(2′-deoxy-2′-fluoroarabinofuranosyl)benzimidazole did not show any antiviral activity, when used in nontoxic concentration. All other nucleosides proved to exhibit a selective antiherpes activity. In contrast, it
[EN] BENZIMIDAZOLE DERIVATIVES<br/>[FR] DERIVES DE BENZIMIDAZOLE
申请人:——
公开号:WO1998056761A2
公开(公告)日:1998-12-17
[EN] The present invention relates to certain bezimidazole derivatives and their use in medical therapy particularly for the treatment or prophylaxis of virus infections such as those caused by herpes viruses. The invention also relates to the preparation of the benzimidazole derivatives and pharmaceutical formulations containing them. [FR] La présente invention concerne certains dérivés de benzimidazole et leur utilisation en thérapie médicale, en particulier, pour la prophylaxie des infections par virus, comme celles provoquées par les virus de l'herpès. L'invention concerne également la préparation de dérivés de benzimidazole, et de formulations pharmaceutiques contenant ces dérivés.
Chemoenzymatic Synthesis and Antiherpes Activity of 5-Substituted 4,6-Difluorobenzimidazoles Ribo- and 2′-Deoxyribonucleosides
pyrrolidino-) in the 5-position of the benzene ring, have been synthesized. All these compounds proved to be substrates for recombinant E. coli purine nucleoside phosphorylase (PNP) in the transglycosylation reaction. Effective methods for the synthesis of ribo- and 2′-deoxyribonucleosides with high yields (60–90%) have been described, and the formation of regioisomeric N3-nucleosides of benzimidazoles have
摘要 较早获得的一系列5,6-二取代苯并咪唑核苷在较低的体外细胞毒性下未显示任何显着的抗病毒活性。在我们的研究过程中,我们成功地将额外的氟原子引入苯并咪唑环系统。合成了一系列新的4,6-二氟苯并咪唑,在苯环的5-位带有多个基团(氟,甲氧基,乙氧基,吗啉代和吡咯烷基)。所有这些化合物被证明是转糖基化反应中重组大肠杆菌嘌呤核苷磷酸化酶(PNP)的底物。已经描述了高产率(60-90%)合成核糖-和2'-脱氧核糖核苷的有效方法,并形成了区域异构N已检测到苯并咪唑的3-核苷。阐明了针对1型单纯疱疹病毒(HSV-1)获得的核苷的生物活性。所有化合物在细胞培养Vero E6中均显示出低细胞毒性。4,5,6-三氟-1-(β- d-呋喃核糖基)苯并咪唑和5-甲氧基-4,6-二氟-1-(β- d -2'-脱氧核糖呋喃糖基)苯并咪唑被证明完全抑制了其发展。感染复数(MOI)为0.01 PFU /细胞时,病毒的细胞病变效应(CPE)。