Palladium-Catalyzed Three-Component Regioselective Dehydrogenative Coupling of Indoles, 2-Methylbut-2-ene, and Carboxylic Acids
作者:Xing-Long Zhang、Rui-Li Guo、Meng-Yue Wang、Bao-Yin Zhao、Qiong Jia、Jin-Hui Yang、Yong-Qiang Wang
DOI:10.1021/acs.orglett.1c03776
日期:2021.12.17
Five-carbon (C5) structural units are the fundamental building blocks of many natural products. An unprecedented palladium-catalyzed three-component dehydrogenative cascade coupling of indoles, 2-methylbut-2-ene, and carboxylicacids has been developed. The approach enables the straightforward introduction of a C3′-bonded five-carbon structural unit with a tertiary alcohol quaternary carbon center
Substituted anilinic piperidines as MCH selective antagonists
申请人:Marzabadi R. Mohammad
公开号:US20070043080A1
公开(公告)日:2007-02-22
This invention is directed to compounds which are selective antagonists for melanin concentrating hormone-1 (MCH1) receptors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of the compound of the invention and a pharmaceutically acceptable carrier. This invention provides a pharmaceutical composition made by combining a therapeutically effective amount of the compound of this invention and a pharmaceutically acceptable carrier. This invention further provides a process for making a pharmaceutical composition comprising combining a therapeutically effective amount of the compound of the invention and a pharmaceutically acceptable carrier.
An efficient KI-mediated chloro-oxidation of indoles was developed, using KCl/NaCl as the chlorine source and oxone as oxidant, which affording various functionalized 3,3-dichloro-2-oxindoles in moderate to excellent yields. This chlorine gas-free protocol provided a practical approach for the synthesis of a series of 3-chloro-2-oxindole derivatives.
开发了一种高效的 KI 介导的吲哚氯氧化反应,使用 KCl/NaCl 作为氯源,oxone 作为氧化剂,以中等到极好的收率提供各种功能化的 3,3-二氯-2-oxindoles。这种不含氯气的方案为合成一系列 3-chloro-2-oxindole 衍生物提供了一种实用的方法。
Regioselective Dehydrogenative Reverse Prenylation of Indoles with 2‐Methyl‐2‐butene
作者:Yong‐Hua Li、Meng‐Yue Wang、Bao‐Yin Zhao、Hong‐Xia Zhang、Shi‐Huan Guo、Qiong Jia、Yong‐Qiang Wang
DOI:10.1002/chem.202300933
日期:2023.7.3
An efficient C-3 regioselective dehydrogenation reverse prenylation of indoles has been developed by use of 2-methyl-2-butene as the prenylation reagent. The protocol is of atom- and step-economies.
We present a straightforward one-step process to access a range of novel p-diindolepyrazines via an unprecedented [n-Bu4N][Fe(CO)3(NO)] (TBA[Fe])-catalyzed intermolecular nitrogenative dimerization of various indole derivatives. Remarkably, tosylazide functions as a N1-synthon forming the central pyrazine unit that joins the two indole subunits. The catalytic transformation shows a good substrate scope