Eco-friendly decarboxylative cyclization in water: practical access to the anti-malarial 4-quinolones
作者:Yue Ma、Yongping Zhu、Dong Zhang、Yuqing Meng、Tian Tang、Kun Wang、Ji Ma、Jigang Wang、Peng Sun
DOI:10.1039/c8gc03570a
日期:——
An eco-friendly decaboxylative cyclization in water has been developed to construct 4-quinolones from readily available isatoic anhydrides and 1,3-dicarbonyl compounds.
Synthesis and Antimicrobial Activity of <i>Burkholderia</i>-Related 4-Hydroxy-3-methyl-2-alkenylquinolines (HMAQs) and Their <i>N</i>-Oxide Counterparts
作者:Marianne Piochon、Pauline M. L. Coulon、Armand Caulet、Marie-Christine Groleau、Eric Déziel、Charles Gauthier
DOI:10.1021/acs.jnatprod.0c00171
日期:2020.7.24
of antimicrobial 2-alkyl-4(1H)-quinolones, i.e., 4-hydroxy-3-methyl-2-alkenylquinolines (HMAQs) and their N-oxide derivatives (HMAQNOs). Herein, we report the synthesis of a series of six HMAQs and HMAQNOs featuring a trans-Δ2 double bond at the C2-alkyl chain. The quinolone scaffold was obtained via the Conrad–Limpach approach, while the (E)-2-alkenyl chain was inserted throughSuzuki–Miyaura cross-coupling