Synthesis, Antiproliferative and Pro-Apoptotic Effects of Nitrostyrenes and Related Compounds in Burkitt's Lymphoma
作者:Andrew J. Byrne、Sandra A. Bright、Darren Fayne、James P. McKeown、Thomas McCabe、Brendan Twamley、Clive Williams、Mary J. Meegan
DOI:10.2174/1573406413666171002123907
日期:2018.2.6
identified as a lead target structure for the development of particularly effective compounds targeting Burkitt's lymphoma (BL). OBJECTIVES The aims of the curent study were to synthesise a panel of nitrostyrene compounds and to evaluate their activity in Burkitt's lymphoma (BL). METHODS A panel of structurally varied compounds were designed and synthesised using Henry Knoevenagel condensation reactions.
A green metal-free “one-pot” microwave assisted synthesis of 1,4-dihydrochromene triazoles
作者:Tânia M. F. Alves、Guilherme A. M. Jardim、Marco A. B. Ferreira
DOI:10.1039/d1ra01169c
日期:——
The synthesis of several 4-aryl-1,4-dihydrochromene-triazoles was achieved via a metal-free “one-pot” procedure using PEG400 as the sole solvent in an eco-friendly process. Using microwave irradiation, the triazole derivatives were obtained in good yields and short reaction times starting from readily accessible building blocks.
MDA-MB-231. Most compounds exhibited good cytotoxic activity against selected cell lines, being more potent than standard drug etoposide. Representatively, 8-methoxy-3-nitro-2-(4-chlorophenyl)-2H-chromene (4l) with IC50 = 0.2 μM against MCF-7 cells, was 36-times more potent than etoposide. Apoptosis as a mechanism of cell death for selected compounds 4h and 4l was confirmed morphologically by acridine
The 1,3-dipolar cycloaddition of 2-aryl-3-nitrochromenes with various azomethine ylides has been investigated. The structure and stereochemistry of cycloadducts were studied in detail by NMR spectroscopic methods.
Regio- and stereoselective synthesis of functionalized tetrahydro-benzochromenes and hexahydrochromenochromenones <i>via</i> [4 + 2] annulation of curcumins with nitrochromenes
作者:Banamali Laha、Alati Suresh、Irishi N. N. Namboothiri
DOI:10.1039/d2ob02211g
日期:——
A base-mediated regio- and stereoselective synthesis of functionalized tetrahydro-6H-benzo[c]chromenes and hexahydro-1H,6H-chromeno[6,5-c]chromenone is disclosed here. It involves a [4 + 2] annulation via cascade double and triple Michael reactions between curcumins and nitrochromenes in the presence of Cs2CO3 and DBU, respectively, at room temperature, and it offers a diverse array of products as
本文公开了功能化四氢-6 H-苯并[ c ]色烯和六氢-1H , 6H-色烯[6,5- c ]色烯酮的碱介导区域选择性和立体选择性合成。它涉及在存在 Cs 2 CO 3的情况下,通过姜黄素和硝基色烯之间的级联双重和三重迈克尔反应的[4 + 2] 环化和 DBU,分别在室温下,它提供了多种产品作为单一区域和非对映异构体,在温和条件下产量高。在有机催化条件下开发对映选择性版本的初步研究只取得了有限的成功,但揭示了一个潜在有趣的动力学拆分途径。