is one important class of materials, which exhibit high nonlinear optical (NLO) responses and good crystallizability. The present study reports the successful development of six new fluorescent cyclohexenone derivatives (CDs) via conventional Robinson annulation method. The molecular structures of these newly synthesized CDs were confirmed by using various analytical techniques such as 1H NMR, 13C NMR
含查耳酮核心的环己烯酮是一类重要的材料,具有很高的非线性光学(NLO)响应和良好的结晶性。本研究报告了通过常规罗宾逊环化方法成功开发了六种新的荧光环己烯酮衍生物(CD)。通过使用各种分析技术,例如1 H NMR,13 C NMR,FTIR,EIMS,UV-Vis光谱和单晶X射线衍射,可以确认这些新合成CD的分子结构。晶体学数据表明,代表性CD(4BE)的空间结构属于单斜晶系P2 1/ c空间组。发光研究的结果表明,CDs分子在室温下在水性介质中显然发出强烈的绿光。通过测量分子静电势和前沿分子轨道能量来预测CDs分子的相对极性和分子化学稳定性。此外,这些CD的UV-Vis光谱,跃迁特性和电子结构是使用量子化学方法计算得出的。有趣的是,计算的和实验的电子跃迁的值(λmax)吻合良好,并且这些CD表现出很高的超极化率(β)值。目前的工作将有助于系统地了解CD的结构和光学性质,以研究CD与CD的结
Introduction of prenyl fragment into chalcones through α-regioselective 1,2-addition in THF
A practical and additive-free method for the prenylation of chalcones using prenylzinc is reported. The protocol described is attractive because it provides access to a new class of prenylated chalcone derivatives derived from two classes of natural products in a simple, high-yielding and regioselective synthetic step. Furthermore, the application of other allylic reagents in our new protocol is demonstrated. A plausible mechanism that invokes steric factors to account for the α-regioselective outcome is proposed.
[EN] COMPOSITION FOR TREATING DIABETES AND METABOLIC DISEASES AND A PREPARATION METHOD THEREOF<br/>[FR] COMPOSITION POUR LE TRAITEMENT DU DIABÈTE ET DE MALADIES MÉTABOLIQUES, ET SON PROCÉDÉ DE PRÉPARATION
申请人:UNIV KAOHSIUNG MEDICAL
公开号:WO2013022951A1
公开(公告)日:2013-02-14
Disclosed is a chalcone composition for treating diabetes and metabolic syndromes. In particular, the chalcone compound bound with 2-halogen in ring A significantly decreases the blood glucose level in the in vitro anti-diabetic effect experiment. In the in vivo animal model, the leading chalcone compound can prevent the progression of diabetes and control the blood glucose level, and there is no significant difference in the gains in body weight. Throughout the seven-week administration, there are no hepatic or renal toxicity observed.
Novel Class of Chalcone Oxime Ethers as Potent Monoamine Oxidase-B and Acetylcholinesterase Inhibitors
作者:Jong Min Oh、T. M. Rangarajan、Reeta Chaudhary、Rishi Pal Singh、Manjula Singh、Raj Pal Singh、Anna Rita Tondo、Nicola Gambacorta、Orazio Nicolotti、Bijo Mathew、Hoon Kim
DOI:10.3390/molecules25102356
日期:——
synthesized novel chalcone oxime ethers (COEs) were evaluated for inhibitory activities against monoamine oxidases (MAOs) and acetylcholinesterase (AChE). Twenty-two of the 24 COEs synthesized, except COE-17 and COE-24, had potent and/or significant selective inhibitory effects on MAO-B. COE-6 potently inhibited MAO-B with an IC50 value of 0.018 µM, which was 105, 2.3, and 1.1 times more potent than clorgyline
COMPOSITION FOR TREATING DIABETES AND METABOLIC DISEASES AND A PREPARATION METHOD THEREOF
申请人:Wu Yang-Chang
公开号:US20140350304A1
公开(公告)日:2014-11-27
Disclosed is a chalcone composition for treating diabetes and metabolic syndromes. In particular, the chalcone compound bound with 2-halogen in ring A significantly decreases the blood glucose level in the in vitro anti-diabetic effect experiment. In the in vivo animal model, the leading chalcone compound can prevent the progression of diabetes and control the blood glucose level, and there is no significant difference in the gains in body weight. Throughout the seven-week administration, there are no hepatic or renal toxicity observed.