Design, synthesis, biological evaluation of 3,5-diaryl-4,5-dihydro-1H-pyrazole carbaldehydes as non-purine xanthine oxidase inhibitors: Tracing the anticancer mechanism via xanthine oxidase inhibition
作者:Gaurav Joshi、Manisha Sharma、Sourav Kalra、Navnath S. Gavande、Sandeep Singh、Raj Kumar
DOI:10.1016/j.bioorg.2020.104620
日期:2021.2
(2a-2x) as xanthineoxidaseinhibitors (XOIs). A docking model was developed for the prediction of XO inhibitory activity of our novel compounds. Furthermore, our compounds anticancer activity results in low XO expression and XO-harboring cancer cells both in 2D and 3D-culture models are presented and discussed. Among the array of synthesized compounds, 2b and 2m emerged as potent XO inhibitors having
黄嘌呤氧化酶 (XO) 主要用于开发抗高尿酸血症/抗痛风剂,因为它催化黄嘌呤和次黄嘌呤转化为尿酸。由于催化过程中活性氧 (ROS) 的产生和致癌物质的代谢活化,XO 在各种癌症中的过度表达非常相关。在此,我们报告了一系列 3,5-二芳基-4,5-二氢-1 H-吡唑甲醛衍生物 ( 2a - 2x) 作为黄嘌呤氧化酶抑制剂 (XOI)。开发了一种对接模型,用于预测我们的新型化合物的 XO 抑制活性。此外,我们的化合物抗癌活性导致 2D 和 3D 培养模型中的低 XO 表达和 XO 携带癌细胞。合成的化合物的阵列中,图2b和2米成为具有IC强效抑制剂XO 50值分别为 9.32 ± 0.45 µM 和 10.03 ± 0.43 µM。这两种化合物均诱导细胞凋亡,在 G1 期停止细胞周期进程,提高 ROS 水平,改变线粒体膜电位,并抑制抗氧化酶。由于我们的化合物诱导的氧化应激增加,细胞中 miRNA
Enantioselective Synthesis of Tetrahydroquinolines
<i>via</i>
<scp>One‐Pot</scp>
Cascade Biomimetic Reduction
<sup>†</sup>
synthesis of chiral tetrahydroquinoline derivatives with excellent enantioselectivities and high yields has been developed through one‐pot cascade biomimetic reduction. The detailed reaction pathway includes the acid‐catalyzed and ruthenium‐catalyzedformation of aromatic quinoline intermediates and biomimetic asymmetric reduction.
Acrylamide in Rauhut-Currier reaction; intramolecular isomerization of activated alkenes for quinolone synthesis
作者:Kishor Chandra Bharadwaj
DOI:10.1016/j.tet.2017.08.002
日期:2017.9
reactivity they have been least used in Morita-Baylis-Hillman (MBH) reaction and have been out of its vinylogus version Rauhut Currier (RC) reaction. Herein, use of acrylamide in RC reaction is being presented. Intramolecular RC reaction followed by [1,3]-H shift led to the synthesis of quinolone moiety. DABCO catalyzed IRC reaction of acrylamide at 80 °C in presence of water, was found to work on a
An Efficient One-Pot Synthesis of 1,2,3-Triazole-Fused Chromenes/Quinolines <i>via</i>
Oxidative [3+2] Cycloaddition followed by Reductive Cyclization
作者:D. Gangaprasad、J. Paul Raj、K. Karthikeyan、R. Rengasamy、J. Elangovan
DOI:10.1002/adsc.201800908
日期:2018.12.3
A convenient and efficient one‐pot synthesis of 1,2,3‐triazole‐fused chromenes/ quinolines is developed. The methodology is based on oxidative azide‐olefin [3+2] cycloaddition followed by intramolecular reductive cyclization. This methodology affords fast and simple access to 1,2,3‐triazole‐fused heterocycles in good to excellent yields without necessitating chromatographic purification.
Asymmetric synthesis of CF<sub>3</sub>-containing tetrahydroquinoline via a thiourea-catalyzed cascade reaction
作者:Yuanyuan Zhu、Boyu Li、Cui Wang、Zhenghao Dong、Xiaoling Zhong、Kairong Wang、Wenjin Yan、Rui Wang
DOI:10.1039/c7ob01013c
日期:——
An organocatalytic asymmetric method for the synthesis of 2-CF3 tetrahydroquinoline has been achieved. The cascadereaction of 2-aminochalcones with β-CF3 nitroalkenes afforded the products bearing three contiguous stereogenic centers in good yields with excellent diastereoselectivities and enantioselectivities.