通过Na 2 S 2 O 4介导的(2-(2-硝基苯基)环氧乙烷-1-基)(芳基)甲酮(邻硝基苯甲酰苯甲酮氧化物)的还原环化反应,可以简单地合成3-羟基喹啉。
摘要:
已经开发了一种有效的连二亚硫酸钠(Na 2 S 2 O 4)介导的方法,该方法通过原位Meinwald重排/邻硝基苯甲酰苯乙酮氧化物的分子内还原环化反应来构建3-羟基喹啉。实用的方法是在温和的反应条件下具有优异的官能团相容性,且产率高达98%。此外,进一步的操作成功地提供了4-溴取代的衍生物,其可以为探索3-羟基喹啉的生物活性类似物提供有希望的潜在应用。
Bromodecarboxylation of Quinoline Salicylic Acids: Increasing the Diversity of Accessible Substituted Quinolines
作者:Kristin Janz、Neelu Kaila
DOI:10.1021/jo9018232
日期:2009.11.20
Quinoline salicylicacids underwent bromodecarboxylation at room temperature upon treatment with N-bromosuccinimide. A wide variety of functional groups was tolerated. Several one-pot transformations were also carried out, allowing the preparation of diverse 4-substituted quinolines.
Setup of 4‐Prenylated Quinolines through Suzuki‐Miyaura Coupling for the Synthesis of Aurachins A and B
作者:Laura Stief、Andreas Speicher
DOI:10.1002/adsc.202100884
日期:2022.1.4
polyprenyl side chain could be introduced into the heterocyclic quinoline moiety through Suzuki-Miyaura coupling of the corresponding quinoline-N-oxide with a polyprenyl boronic acid. This tool could be utilized for the synthesis of the natural product Aurachin Bfrom the myxobacterium Stigmatella aurantiaca. This prenylated quinoline could then be transformed into the related Aurachin A through an
different next generation inhibitor to MK-5172 (our Ns3/4a protease inhibitor currently under regulatory review), which would achieve superior pangenotypic activity with acceptable safety and pharmacokinetic profile. These efforts have led to the discovery of a novel class of HCV NS3/4a protease inhibitors containing a unique spirocyclic-proline structural motif. The design strategy involved a molecular-modeling
Compound having tgfß inhibitory activity and medicinal composition containing the same
申请人:Shimizu Kiyoshi
公开号:US20060111375A1
公开(公告)日:2006-05-25
The present invention provides compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof:
wherein X represents CH or N; Z represents —O—, —NH— or —C(═O)—; R and R′ represent a hydrogen atom, hydroxyl, a halogen atom, optionally substituted alkyl, optionally substituted alkenyl optionally substituted alkoxy, amino, aminocarbonyl, or an optionally substituted heterocyclic group; and A represents an optionally substituted specific carbocyclic or heterocyclic group. The compounds according to the present invention have excellent TGFβ inhibitory activity.
COMPOUND HAVING TGFBETA INHIBITORY ACTIVITY AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME
申请人:Shimizu Kiyoshi
公开号:US20090312313A1
公开(公告)日:2009-12-17
The present invention provides compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof:
wherein X represents CH or N; Z represents —O—, —NH— or —C(═O)—; R and R′ represent a hydrogen atom, hydroxyl, a halogen atom, optionally substituted alkyl, optionally substituted alkenyl optionally substituted alkoxy, amino, aminocarbonyl, or an optionally substituted heterocyclic group; and A represents an optionally substituted specific carbocyclic or heterocyclic group. The compounds according to the present invention have excellent TGFβ inhibitory activity.