involving [3+2] cycloaddition, 1,2-acyl migration and hydrolysis produces 2H-1,2,3-triazoles via the regioselective formation of N2-carboxyalkylated triazoles. The reaction proceeds in aqueousmedia through intriguing reaction kinetics using a CuI–prolinamide catalyst system. Prolinamide promotes the novel organocatalytic 1,2-acyl migration as well as hydrolysis of the resulting N2-carboxyalkylated triazoles
Synthesis of 10β-Substituted Triazolyl Artemisinins and Their Growth Inhibitory Activity against Various Cancer Cells
作者:Seok-Joon Lee
DOI:10.5012/bkcs.2011.32.2.737
日期:2011.2.20
Acid-catalyzed synthesis of 10-substituted triazolyl artemisinins and their growth inhibitory activity against various cancer cells
作者:Sangtae Oh、Woon-Seob Shin、Jungyeob Ham、Seokjoon Lee
DOI:10.1016/j.bmcl.2010.05.074
日期:2010.7
A diastereomeric and regioisomeric library of 10-substituted triazolyl artemisinin compounds (6a-6h, 7a-7h, and 8a-8h) with a potent growth inhibitory activities against various cancer cell lines was established. These compounds were synthesized by a reaction with dihydroartemisinin (2) and various substituted triazoles (5a-5h) in methylene chloride using a BF(3)Et(2)O catalyst. Most of the compounds exhibited a strong potency in the submicromolar range, and, in particular, 6f, 7f, and 8f, which have a pentylphenyltriazole moiety, proved to be promising candidates for preclinical trials. (C) 2010 Elsevier Ltd. All rights reserved.
Bitriazolyl acyclonucleosides with antiviral activity against tobacco mosaic virus
Bitriazolyl acyclonucleosides were synthesized via the Huisgen reaction and then subjected to ammonolysis. The antiviral activity of these nucleosides against tobacco mosaic virus (TMV) was assessed. Like the previously described bitriazolyl compounds, these new bitriazolyl acyclonucleosides were found to show anti-TMV activity. This suggests that the bitriazolyl moieties are important structural features involved in the antiviral activity of these compounds. (C) 2008 Elsevier Ltd. All rights reserved.