pharmacological study of the in vivo anticoagulant effect of the derivatives with respect to warfarin showed that the synthesized compounds have different anticoagulantactivities. The most prospective compounds are 3‐(3′‐hydroxybenzylidene)‐2,4‐diketochroman 4 and 3,3′‐(2‐pyridylmethylene)‐bis‐4‐hydroxy‐2H‐1‐benzopyran‐2‐one 11 with low toxicity and dose‐dependent anticoagulantactivity in vivo.
Benzylidene-bis-(4-Hydroxycoumarin) and Benzopyrano-Coumarin Derivatives: Synthesis, 1H/13C-NMR Conformational and X-ray Crystal Structure Studies and In Vitro Antiviral Activity Evaluations
We report on the synthesis of 4-hydroxycoumarin dimers 1–15 bearing an aryl substituent on the central linker and fused benzopyranocoumarin derivatives 16–20 and on their in vitro broad anti-DNA and RNA virus activityevaluations. The chemical identities and structure of compounds 1–20 were deduced from their homo- and heteronuclear NMR measurements whereas the conformational properties of 5, 14 and
Dicoumarol derivatives: Green synthesis and molecular modelling studies of their anti-LOX activity
作者:Dušica Simijonović、Evangelia-Eirini Vlachou、Zorica D. Petrović、Dimitra J. Hadjipavlou-Litina、Κonstantinos E. Litinas、Nevena Stanković、Nezrina Mihović、Milan P. Mladenović
DOI:10.1016/j.bioorg.2018.07.021
日期:2018.10
synthesized in the InCl3 catalyzed pseudo three-componentreactions of 4-hydroxycoumarin with aromatic aldehydes in excellent yields. The reactions were performed in water under microwave irradiation. All synthesized compounds were characterized using NMR, IR, and UV–Vis spectroscopy, as well as with TD-DFT. Obtained dicoumarols were subjected to evaluation of their in vitro lipidperoxidation and soybean lipoxygenase
在4-羟基香豆素与芳族醛的InCl 3催化的拟三组分反应中合成了双香豆酚衍生物,收率很高。反应在水中在微波辐射下进行。使用NMR,IR和UV-Vis光谱以及TD-DFT对所有合成的化合物进行表征。对获得的二香豆酚进行体外脂质过氧化和大豆脂氧合酶抑制活性的评估。结果表明,所检测的十种化合物中的五种(3e,3h,3b,3d,3f)具有显着的抗脂质过氧化潜力(84–97%),并且化合物3b,3e,3h提供了最高的大豆脂氧合酶(LOX-1b)抑制作用(IC 50 = 52.5 µM),3i提供了较低的活性(IC 50 = 55.5 µM)。最好的LOX-Ib抑制剂的生物活性构象是通过分子对接和分子动力学获得的。结果表明,在LOX-1b活性位点内部的生物活性构象内,活性最高的化合物形成由两个4-羟基香豆素核心和中心苯基取代基组成的金字塔结构。这种形式用作防止LOX-Ib Fe 2+ / Fe 3