Synthesis and cdc25B inhibitory activity evaluation of chalcones
作者:Fei Zhao、Qing-Jie Zhao、Jing-Xia Zhao、Da-Zhi Zhang、Qiu-Ye Wu、Yong-Sheng Jin
DOI:10.1007/s10600-013-0563-7
日期:2013.5
A library of sixty-five chalcones was prepared for screening against the protein phosphatase, cdc25B. From this library, thirteen compounds were found having good inhibitory activity. Two compounds have excellent activity and can be used for the design of more potent antiproliferative agents.
annulation with glutaconate to provide straightforward access to phenanthridine‐8‐carboxylates and hydrophenanthridine‐8‐carboxylates under mild aerobic conditions. In this domino transformation, two rings and three bonds were successively created. A mechanism involving tandem [3+3]‐annulation/intramolecularcyclization/ demethoxycarbonylation/aerobic oxidative aromatization sequence was proposed.
Design, synthesis and antibacterial activity of chalcones against MSSA and MRSA planktonic cells and biofilms
作者:Mayara A.R. Garcia、Reinaldo S. Theodoro、Janaina C.O. Sardi、Mariana B. Santos、Gabriela M. Ayusso、Fernando R. Pavan、Alan R. Costa、Lucas M. Santa Cruz、Pedro L. Rosalen、Luis O. Regasini
DOI:10.1016/j.bioorg.2021.105279
日期:2021.11
respectively. In addition, the antibacterialactivity spectrum of 5f indicated action against planktonic cells of Enterococcus faecalis (MIC = 7.8 μg mL−1), Acinetobacter baumannii (MIC = 15.6 μg mL−1) and Mycobacterium tuberculosis (MIC = 5.7 μg mL−1). Altogether, these results open new avenues for 5f as an anti-Staphylococcus aureus agent, with potential applications as antibacterial drug, adjunct of antibiotics
金黄色葡萄球菌是现代最成功的病原体之一。作为皮肤和粘膜共生体的细菌可以在医疗保健和社区环境中传播并导致严重感染。因此,发现应对耐药菌株起作用的新型抗金黄色葡萄球菌化合物是一项巨大的挑战。在此,我们设计并合成了一系列 17 个查耳酮,在 A 环上被氨基取代,对甲氧西林敏感金黄色葡萄球菌(MSSA) 和耐甲氧西林金黄色葡萄球菌MRSA 浮游细胞进行了评估。根据Topliss的手动方法设计的B环上的取代基提高了抗菌效力。4-bromo-3'-aminochalcone ( 5f) 是最活跃的,表明对 MSSA 和 MRSA 的最小抑制浓度 (MIC) 值分别为 1.9 μg mL -1和 7.8 μg mL -1。的关联5F用万古霉素显示出对MSSA和MRSA的协同效应,与分别为0.4和0.3,部分抑制浓度指数(FICI)值。5f 的亚抑制浓度抑制 MSSA 和 MRSA 对人角质形成细胞的粘附。Chalcone
p-TsOH-promoted synthesis of (E)-6-phenyl-7-styryl-5,6-dihydrodibenzo[b,h][1,6]naphthyridines via cascade intramolecular aza-Michael addition/Friedlander condensation of 2′-aminochalcones in a SDS/H<sub>2</sub>O system
作者:Makthala Ravi、Parul Chauhan、Shikha Singh、Ruchir Kant、Prem. P. Yadav
DOI:10.1039/c6ra04837d
日期:——
Brønsted acid-promoted cascade synthesis of novel (E)-6-phenyl-7-styryl-5,6-dihydrodibenzo[b,h][1,6]naphthyridines has been achieved via homodimerization of 2′-aminochalcones by employing sodium dodecylsulphate (SDS) as a surfactant in water. Besides water as an environmentally benign reaction medium, the reaction proceeds smoothly with high atom-economy under a sequential one-pot protocol.
In search for SDHIs fungicides, twenty-five novelcarboxamides containing a chalcone scaffold were designed, synthesized, and evaluated for antifungal activities against five pathogenic fungi. The results showed that compound 5 k exhibited outstanding antifungal activity against R. solani with an EC50 value of 0.20 μg/mL, which was much better than that of commercial SDHIs Boscalid (EC50=0.74 μg/mL)