Highly Efficient and Facile Synthesis of 5-Azido-2′-Deoxyuridine
摘要:
Previously reported syntheses of the photoaffinity label 5-azido-2'-deoxyuridine are rather inefficient and involve the tedious preparation of a 5-nitro intermediate. To overcome these inconveniences, we have developed a new approach from the commercially available 5-bromo-2'-deoxyuridine nucleoside. Our synthetic route makes use of a benzylamination reduction sequence. Using this strategy, the 5-azido-2'-deoxyuridine photolabel is prepared in three steps and quantitative yields.
Highly Efficient and Facile Synthesis of 5-Azido-2′-Deoxyuridine
摘要:
Previously reported syntheses of the photoaffinity label 5-azido-2'-deoxyuridine are rather inefficient and involve the tedious preparation of a 5-nitro intermediate. To overcome these inconveniences, we have developed a new approach from the commercially available 5-bromo-2'-deoxyuridine nucleoside. Our synthetic route makes use of a benzylamination reduction sequence. Using this strategy, the 5-azido-2'-deoxyuridine photolabel is prepared in three steps and quantitative yields.
Perylenyltriazoles inhibit reproduction of enveloped viruses
作者:Andrey V. Aralov、Gleb V. Proskurin、Alexey A. Orlov、Liubov I. Kozlovskaya、Alexey A. Chistov、Sergey V. Kutyakov、Galina G. Karganova、Vladimir A. Palyulin、Dmitry I. Osolodkin、Vladimir A. Korshun
DOI:10.1016/j.ejmech.2017.06.014
日期:2017.9
1-Substituted 4-perylen-2(3)-y1-1,2,3-triazoles, easily accessible by 'click' reaction and combining in one molecule a polyaromatic unit and a nitrogen heterocycle, were found to strongly inhibit the reproduction of enveloped viruses. 5[4-(Perylen-3-y1)-1,2,3-triazol-1-y1]-uridine and 2-[1-(2-hydroxyethyl)-1,2,3triazol-4-yl]perylene show EC50 of 0.031 and 0.023 mu M, respectively, against tick-borne encephalitis virus (TBEV). Remarkably, the nucleoside unit appears to be not essential for antiviral activity. These results provide deeper understanding of structural basis of activity for this new class of antivirals. (C) 2017 Elsevier Masson SAS. All rights reserved.
Highly Efficient and Facile Synthesis of 5-Azido-2′-Deoxyuridine
Previously reported syntheses of the photoaffinity label 5-azido-2'-deoxyuridine are rather inefficient and involve the tedious preparation of a 5-nitro intermediate. To overcome these inconveniences, we have developed a new approach from the commercially available 5-bromo-2'-deoxyuridine nucleoside. Our synthetic route makes use of a benzylamination reduction sequence. Using this strategy, the 5-azido-2'-deoxyuridine photolabel is prepared in three steps and quantitative yields.