Scalable Multigram Syntheses of Antimalarial 4(1<i>H</i>
)-Quinolones ELQ-300 and P4Q-391
作者:Niranjan K. Namelikonda、Andrii Monastyrskyi、Roman Manetsch
DOI:10.1002/ejoc.201700326
日期:2017.6.23
synthetic routes of ELQ-300 and P4Q-391 including reliance on toxic heavy-metal reagents, harsh reaction conditions, and several low-yielding steps. Herein, we report the development of two alternative syntheses, which are reliable, high yielding, scalable, and have the potential to become a route of choice at process scale.
Synthesis of 5-alkynyl-2,2,6-trimethyl-1,3-dioxin-4-ones and 1,4-disubstituted-1,2,3-triazoles
作者:Hélio A. Stefani、Adriano S. Vieira、Mônica F.Z.J. Amaral、Leora Cooper
DOI:10.1016/j.tetlet.2011.04.072
日期:2011.8
5-alkynyl-1,3-dioxin-4-ones using Suzuki–Miyaura cross-coupling reaction of potassium alkynyltrifluoroborate salts with 2,2,6-trimethyl-5-iodo-1,3-dioxin-4-one. The resulting 5-ethynyltrimethylsilyl-1,3-dioxin-4-ones obtained through the Sonogashira reaction were further reacted in a Cu(I)-catalyzedHuisgenazide–alkyne1,3-dipolarcycloaddition to form functionalized 1,4-disubstituted-1,2,3-triazoles in
Design and synthesis of further simplified pyripyropene A based ACAT2 selective inhibitors
作者:Yi Liu、Xiaowei Zhang、Yang Zhan、Boliang Li、Wei Lu、Fajun Nan
DOI:10.1016/j.tet.2019.01.017
日期:2019.3
Acyl-coenzyme A: cholesterol acyltransferases (ACATs) play the significant role in the formation of cholesterol esters. One form of this enzyme is ACAT2, which not only regulates the balance of cholesterol metabolism in cells but also participates in the “escape” mechanism of hepatocellular carcinoma (HCC) cells. The natural product pyripyropene A (PPPA) and its analogs are the only chemical ACAT2-specific