Dichloroacetophenones targeting at pyruvate dehydrogenase kinase 1 with improved selectivity and antiproliferative activity: Synthesis and structure-activity relationships
作者:Shao-Lin Zhang、Zheng Yang、Xiaohui Hu、Kin Yip Tam
DOI:10.1016/j.bmcl.2018.09.026
日期:2018.11
Dichloroacetophenone is a pyruvate dehydrogenase kinase 1 (PDK1) inhibitor with suboptimal kinase selectivity. Herein, we report the synthesis and biological evaluation of a series of novel dichloroacetophenones. Structure-activity relationship analyses (SARs) enabled us to identify three potent compounds, namely 54, 55, and 64, which inhibited PDK1 function, activated pyruvate dehydrogenase complex
Organic synthesis using (diacetoxyiodo)benzene (DIB): Unexpected and novel oxidation of 3-oxo-butanamides to 2,2-dihalo-<i>N</i>-phenylacetamides
作者:Wei-Bing Liu、Cui Chen、Qing Zhang、Zhi-Bo Zhu
DOI:10.3762/bjoc.8.38
日期:——
cleavage of a carbon-carbon bond in the presence of DIB and a Lewis acid as the halogen source, and thus this method significantly expands the value of DIB as a unique and powerful tool in chemical synthesis. This protocol not only adds a new aspect to reactions that use other hypervalent iodine reagents but also provides a wide space for the synthesis of disubstituted acetamides.
Approach for the Direct Synthesis of<i>β</i>-Dichlorosubstituted Acetanilides Using Iodine Trichloride (ICl<sub>3</sub>) as the Oxidant and Catalyst
作者:Qing Zhang、Weibing Liu、Cui Chen、Liquan Tan
DOI:10.1002/cjoc.201300007
日期:2013.4
A reliable method for directsynthesis of β‐dichlorosubstituted acetanilides is reported. The key transformation involves the oxidative and catalytic cleavage of a carbon‐carbon bond in the presence of iodinetrichloride (ICl3). In this protocol ICl3 is used not only as the catalyst but also as the oxidant which widely broadens the scope of its application in organic synthetic chemistry.
Dichloromeldrum’s Acid (DiCMA): A Practical and Green Amine Dichloroacetylation Reagent
作者:David M. Heard、Alastair J. J. Lennox
DOI:10.1021/acs.orglett.1c00850
日期:2021.5.7
dichloroacetylation of anilines and alkylamines to produce α,α-dichloroacetamides, which are important motifs for medicinal chemistry. Products are formed in good to excellent yields with reagent grade solvents, and, as the only byproducts are acetone and CO2, no column chromatography is required. Thus, this reagent is practical, efficient, and green for the dichloroacetylation of primary amines.
Synthesis, structural, vibrational and quantum chemical investigations of N-(2-methylphenyl)-2,2-dichloroacetamide and N-(4-methylphenyl)-2,2-dichloroacetamide
(4MPA) of the configuration XyC6H5−y–NHCO–CHCl2 (where, X = CH3 and y = 1) were synthesised and an extensive spectroscopic investigations have been carried out by recording the Fourier transform infrared (FTIR) and FT-Raman spectra and subjecting them to normal co-ordinate analysis, in an effort to provide mixing of the fundamental modes with the help of potential energy distribution (PED). The ab initio
N-(2-甲基苯基)-2,2-二氯乙酰胺(2MPA)和N-(4-甲基苯基)-2,2-二氯乙酰胺(4MPA),结构X y C 6 H 5- y –NHCO-CHCl 2(其中, 合成了X = CH 3和y = 1),并通过记录傅立叶变换红外(FTIR)和FT-Raman光谱并对其进行正态坐标分析进行了广泛的光谱研究,以期在势能分布(PED)的帮助下提供基本模式的混合。该从头和DFT研究使用6-311进行++G(d,p)基确定化合物的结构,热力学和振动特性,并了解甲基对酰胺基(–CONH–)特征频率的空间影响。