Stereoselective, solvent free, highly efficient synthesis of aldo- and keto-N-acylhydrazones applying grindstone chemistry
作者:José Maurício dos Santos Filho、Savio Moita Pinheiro
DOI:10.1039/c7gc00730b
日期:——
A mild and efficientsynthesis of N-acylhydrazones has been developed, applying a simple grindstone procedure, leading to a library of 51 examples exhibiting a broad variety of structural features, 21 of them described for the first time in this paper. This methodology works without any organic solvent under the catalysis of acetic acid at room temperature, promotes the formation of essentially pure
Mild, Stereoselective, and Highly Efficient Synthesis of<i>N</i>-Acylhydrazones Mediated by CeCl<sub>3</sub>·7H<sub>2</sub>O in a Broad Range of Solvents
作者:José Maurício dos Santos Filho
DOI:10.1002/ejoc.201402609
日期:2014.10
This method uses a minimal catalytic amount of cerium(III), is stereoselective, and offers several unique features, such as compatibility with aryl, heterocyclic, alkenyl, and sensitive functional groups as well as the ability to prepare N-acylhydrazones from highly hindered substrates. More strikingly, cerium(III) efficiently mediated the reaction with less reactive substrates such as diaryl and alkyl
Synthesis of<scp>d</scp>-(+)-camphor-based<i>N</i>-acylhydrazones and their antiviral activity
作者:Kseniya S. Kovaleva、Fedor I. Zubkov、Nikolay I. Bormotov、Roman A. Novikov、Pavel V. Dorovatovskii、Victor N. Khrustalev、Yuriy V. Gatilov、Vladimir V. Zarubaev、Olga I. Yarovaya、Larisa N. Shishkina、Nariman F. Salakhutdinov
DOI:10.1039/c8md00442k
日期:——
including 2D NMR spectroscopy, mass spectrometry, and X-ray diffraction analysis. In vitro screening for activity against vaccinia virus (VV) and influenza H1N1 virus was carried out for the obtained compounds. It was revealed that the derived N-acylhydrazones exhibited significant antiviralactivity with a selectivity index >280 against VV for the most promising compound.
介绍了一系列对牛痘和流感病毒具有抑制活性的新型D -(+)-樟脑N-酰基腙的设计和合成。已经开发了一种获得基于樟脑的N-酰基腙的简单途径,该途径在其结构中含有脂肪族、芳香族和杂环药效团支架。通过一整套光谱表征技术,包括二维核磁共振光谱、质谱和 X 射线衍射分析,对合成的腙的构象和构型进行了彻底的表征。对获得的化合物进行了针对牛痘病毒(VV)和流感H1N1病毒的体外活性筛选。结果表明,导出的N对于最有希望的化合物,-酰基腙表现出显着的抗病毒活性,对 VV 的选择性指数 > 280。