Total Synthesis of Anibamine, a Novel Natural Product as a Chemokine Receptor CCR5 Antagonist
摘要:
The total synthesis of anibamine, the first and only natural product known as a chemokine receptor CCR5 antagonist, is reported herein. Anibamine was synthesized from acetylacetone and cyanoacetamide in 10 steps.
[EN] PYRIDINONE- AND PYRIDAZINONE-BASED COMPOUNDS AND MEDICAL USES THEREOF<br/>[FR] COMPOSÉS À BASE DE PYRIDINONE ET DE PYRIDAZINONE ET UTILISATIONS MÉDICALES ASSOCIÉES
申请人:HLA TIMOTHY
公开号:WO2019173790A1
公开(公告)日:2019-09-12
The various examples presented herein are directed to compounds of the formula A-L1-Het1-L2-Cy1 or a pharmaceutical acceptable salt, polymorph, prodrug, solvate or clathrate thereof, wherein: A is cycloalkyl, aryl, arylalkyl or heterocyclyl; Het1 is heterocyclyl containing at least two heteroatoms; Cy1 is a heterocyclyl; L1 is a bond, alkyl, alkenyl or alkynyl linker; L2 is an acyl or alkyl linker; and A and Cy1 are different. The compounds are useful in the treatment of fibrotic diseases, abnormal vascular leak and pathological angiogenesis.
2-Bromo-1-(1<i>H</i>-pyrazol-4-yl)ethanone: Versatile Precursor for Novel Mono- and Bis[pyrazolylthiazoles]
作者:Mostafa E. Salem、Ahmed F. Darweesh、Ahmed E. M. Mekky、Ahmad M. Farag、Ahmed H. M. Elwahy
DOI:10.1002/jhet.2571
日期:2017.1
The synthesis of novel bis(thiazoles) 20a, 20b, 20c and 23a, 23b, 23c is reported. Thus, reaction of 2‐bromo‐1‐(5‐methyl‐1‐phenyl‐1H‐pyrazol‐4‐yl)ethanone (6) with the corresponding thioamide derivatives 7a,7b, in refluxing EtOH in the presence of triethylamine, afforded 4‐pyrazolylthiazoles 8a, 8b in good yields. On the other hand, the novel bis(thiazoles) 20a, 20b, 20c and 23a, 23b, 23c were obtained
2-Bromo-1-(1H-pyrazol-4-yl)ethanone: versatile precursors for novel mono-, bis- and poly{6-(1H-pyrazol-4-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines}
作者:Mostafa E. Salem、Ahmed F. Darweesh、Ahmad M. Farag、Ahmed H.M. Elwahy
DOI:10.1016/j.tet.2015.12.024
日期:2016.2
A simple synthesis of novel mono-, bis- and poly6-(1H-pyrazol-4-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines} is reported. The formation of the target compounds was achieved by the reaction of 2-bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone with the appropriate aminotriazolethiol or by the reaction of 6-pyrazolyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine-3-thiol with the appropriate di- and
新型单,双和聚6-(1 H-吡唑-4-基)-[1,2,4]三唑[3,4- b ] [1,3,4]噻二嗪的简单合成被报道。通过2-溴-1-(5-甲基-1-苯基-1 H-吡唑-4-基)乙酮与适当的氨基三唑硫醇的反应或6-吡唑基-的反应实现目标化合物的形成。7 H- [1,2,4]三唑并[3,4- b ] [1,3,4]噻二嗪-3-硫醇与适当的二-和聚(溴)化合物。通过光谱和元素分析确定了新合成化合物的结构。
NOVEL HETEROAROMATIC DERIVATIVES AND THEIR USE AS POSITIVE ALLOSTERIC MODULATORS OF METABOTROPIC GLUTAMATE RECEPTORS
申请人:Boléa Christelle
公开号:US20100144756A1
公开(公告)日:2010-06-10
The present invention relates to novel compounds of Formula (I), wherein X
1
, X
2
, X
3
, X
4
, Y
1
, Y
2
, Y
3
, Y
4
, M
1
, M
2
, M
3
, A
m
and B
n
are defined as in Formula (I); invention compounds are modulators of metabotropic glutamate receptors—subtype 4 (“mGluR4”) which are useful for the treatment or prevention of central nervous system disorders as well as other disorders modulated by mGluR4 receptors.
The invention is also directed to pharmaceutical compositions and the use of such compounds in the manufacture of medicaments, as well as to the use of such compounds for the prevention and treatment of such diseases in which mGluR4 is involved.
A facile, regioselective synthesis of pyrazolo[1, 5-a]pyrimidine analogs in the presence of KHSO4 in aqueous media assisted by ultrasound and their anti-inflammatory and anti-cancer activities
5-a]pyrimidine derivatives under ultrasound irradiation assisted by KHSO4 in aqueous medium. 3-(4-Methoxyphenyl)-3-oxopropanenitrile reacted with hydrazine hydrate in refluxing ethanol to give 5-(4-methoxyphenyl)-1H-pyrazol-3-amine. Condensation of 3-aminopyrazoles with formylated active proton compounds furnished pyrazolopyrimidines in high to excellent yield. The chemical structure and regioselectivity
摘要描述了一种环境友好,简单,有效和方便的方法,该方法用于在水性介质中在KHSO 4辅助的超声辐射下合成新型吡唑并[1,5- a ]嘧啶衍生物。3-(4-甲氧基苯基)-3-氧代丙烷腈与水合肼在回流的乙醇中反应,得到5-(4-甲氧基苯基)-1 H-吡唑-3-胺。3-氨基吡唑与甲酰化的活性质子化合物的缩合以高至优异的产率提供了吡唑并嘧啶。通过IR,1 H NMR,13确认合成的化合物的化学结构和区域选择性1 H NMR和质谱数据。对所选化合物进行了X射线晶体学研究。此外,筛选了这些合成的化合物的抗炎和抗癌活性,结果令人鼓舞。该方案的主要优点是收率高,操作简单,反应时间短,并且没有苛刻的反应条件。 图形概要