A Heck reaction/photochemical alkene isomerization sequence to prepare functionalized quinolines
作者:Alex Kelly、Jack B. Hoffman、Oskar Hoff、Johannes C.L. Walker、Simon Werrel、Timothy J. Donohoe
DOI:10.1016/j.tet.2020.131396
日期:2020.8
A route to prepare functionalized quinolines based on a Heck reaction/UV-induced alkene isomerization sequence is described. The method allows for the preparation of quinolines under mild and neutral conditions and has broad functional group tolerance. Acid-sensitive functional groups that would not be tolerated under previous approaches can be included and a one-pot quinoline forming procedure is
A reversal of the standard regiochemistry of the Skraup−Doebner−Von Miller quinoline synthesis was observed when anilines were condensed with γ-aryl-β,γ-unsaturatedα-ketoesters in refluxing TFA. The reaction is proposed to involve 1,2-addition of the anilines to γ-aryl-β,γ-unsaturatedα-ketoesters to form Schiff's base adducts, followed by cyclization and oxidation. The products were unambiguously
One-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed three-component cascade annulation of amines, alkyne esters and terminal alkynes
作者:Yunlan Li、Qiurui Zhang、Xuefeng Xu、Xu Zhang、Yurong Yang、Wei Yi
DOI:10.1016/j.tetlet.2019.03.003
日期:2019.4
Described herein is a new and general method for one-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed [3 + 1 + 2] annulation of simple amines, alkyne esters and terminal alkynes. The versatile transformation might initiate with the facile formation of the enamine species with the feature of good to excellent yields, exclusive regioselectivity, and excellent substrate/functional group
[EN] HYDROXAMIC ACID DERIVATIVES AS GRAM-NEGATIVE ANTIBACTERIAL AGENTS<br/>[FR] DÉRIVÉS DE L'ACIDE HYDROXAMIQUE EN TANT QU'AGENTS CONTRE DES BACTÉRIES À GRAM NÉGATIF
申请人:ASTRAZENECA AB
公开号:WO2010100475A1
公开(公告)日:2010-09-10
The invention relates to chemical compounds of formula (IB): or a salt thereof. In some embodiments, the invention relates to inhibitors of UDP-3-0 — (R-S-hydroxymyristoyl)-N-acetylglucosamine deacetylase (LpxC). In still further embodiments, the invention relates to pharmaceutical compositions comprising compounds disclosed herein and their use in the prevention and/or treatment of Gram- negative bacterial infections.