ZrO<sub>2</sub>-supported Cu(<scp>ii</scp>)–β-cyclodextrin complex: construction of 2,4,5-trisubstituted-1,2,3-triazoles via azide–chalcone oxidative cycloaddition and post-triazole alkylation
作者:Yarabally R. Girish、Kothanahally S. Sharath Kumar、Umashankar Muddegowda、Neartur Krishnappagowda Lokanath、Kanchugarakoppal S. Rangappa、Sheena Shashikanth
DOI:10.1039/c4ra09970b
日期:——
The ZrO2–Cu2–β-CD complex is an excellent catalyst for the synthesis of N-2-alkylated-1,2,3-triazoles.
ZrO2–Cu2–β-CD复合物是合成N-2-烷基化-1,2,3-三唑的优秀催化剂。
A Novel Series of 3,4-Disubstituted Dihydropyrazoles: Synthesis and Evaluation for MAO Enzyme Inhibition
In this study, the authors have designed and synthesized a novelseries of 3-acyl-4-aryl-4,5-dihydropyrazoles, with the aim to obtain new potential scaffolds for the inhibition of both isoforms of monoamine oxidase (MAO) enzyme. The synthetic pathway to these compounds includes as a key step the 1,3-dipolar cycloaddition reaction of diazomethane with a chalcone. All the compounds were fully characterized
Efficient synthesis and molecular docking of novel antibacterial pyrimidines and their related fused heterocyclic derivatives
作者:Sherif M. H. Sanad、Ahmed A. M. Ahmed、Ahmed E. M. Mekky
DOI:10.1002/jhet.3789
日期:2020.2
cyclocondensed with 2‐cyanothioacetamide to give pyridine‐2(1H)‐thione and taken as a key synthon to novel 2‐(methylthio)pyridothienopyrimidin‐4(3H)‐one derivative. The above derivative reacted with the appropriate hydrazonyl chlorides in dioxane in the presence of triethylamine to yield the corresponding pyridothieno[3,2‐d][1,2,4]triazolo[4,3‐a]pyrimidines. Study of the in vitro antimicrobial activities of the
3-(苯并[ d ] [1,3]二恶酚-5-基)-1-(噻吩-2-基)丙-2-烯-1-酮与硫脲和6-氨基-2-硫代己酸酯反应-2,3-二氢嘧啶-4(1 H)-一,得到相应的嘧啶-2(1 H)-硫酮。然后,这些化合物在三乙胺存在下与适当的酰氯在二恶烷中反应,得到相应的[1,2,4]三唑并[4,3- a ]嘧啶及其相关的稠合吡啶。此外,查尔酮与2-氰基硫代乙酰胺环缩合,得到吡啶-2-(1 H)-硫酮,并被用作新型2-(甲硫基)吡啶并噻吩并嘧啶-4(3 H)的关键合成子。)-一阶导数 在三乙胺存在下,上述衍生物与适当的酰氯在二恶烷中反应,生成相应的吡啶并噻吩并[3,2- d ] [1,2,4]三唑并[4,3- a ]嘧啶。研究了新嘧啶的体外抗菌活性。Pyridothienopyrimidine 24a对所有细菌的最高抑菌活性分别为3.9、7.81、7.81和15.62μg / mL,对大肠杆菌,肺炎克雷伯菌,
Design, Synthesis, and Neuroprotective Effects of a Series of Pyrazolines against 6-Hydroxydopamine-Induced Oxidative Stress
作者:Ahmet Özdemir、Belgin Sever、Mehlika Altıntop、Elif Kaya Tilki、Miriş Dikmen
DOI:10.3390/molecules23092151
日期:——
oxidative stress. Based on the neuroprotective properties of 2-pyrazoline derivatives, in the current work, 1-(phenyl/4-substituted phenyl)-3-(2-furanyl/thienyl)-5-aryl-2-pyrazolines (3a⁻i, 4a⁻i) were synthesized via the cyclization of the chalcones (1, 2) with suitable phenylhydrazine hydrochloride derivatives. All these compounds were investigated for their neuroprotectiveeffects using an in vitro 6-hydroxydopamine
compound A13 was typically mixed AChE inhibitors, which showed significant similarity to donepezil. In addition, the best docking pose was done by analyzing the docking pattern of the most active compound A13 which was very compatible with the gorge and in interaction with both CAS and PAS. Conclusion: The synthesis of new thiophene-2-pyrazoline and benzothiazole derivatives targeting AChE/(MAO-A)/(MAO-B)