Structure Guided Design, Synthesis, and Biological Evaluation of Oxetane-Containing Indole Analogues.

Structure Guided Design, Synthesis, and Biological Evaluation of Oxetane-Containing Indole Analogues.
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含氧杂环丁烷吲哚类似物的结构引导设计、合成和生物学评价。

DOI:
10.1016/j.bmc.2023.117400
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发表时间:
2023
影响因子:
3.5
通讯作者:
Pinney,KevinG
Pinney,KevinG
中科院分区:
医学3区
文献类型:
--
作者:
Ren,Wen;Vairin,Rebecca;Ward,JacobD;Francis,Ricardo;VanNatta,Jenny;Bai,Ruoli;Tankoano,PouguiniseliE;Deng,Yuling;Hamel,Ernest;Trawick,MaryLynn;Pinney,KevinG

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氧杂环丁烷官能团在作为酮替代物掺入适当的治疗剂中时提供多种潜在的优点。OXi 8006是一种2-芳基-3-芳酰基-吲哚类似物,作为微管蛋白聚合的小分子抑制剂发挥作用,其具有作为抗增殖剂和肿瘤选择性血管破坏剂的双重作用机制。用氧杂环丁烷官能团取代OXi 8006中的桥接酮部分扩展了结构活性关系(SAR)知识,并提供了关于该类分子中氧杂环丁烷掺入的见解。一种新的合成方法,使用含氧杂环丁烷的叔醇进行刘易斯酸催化条件下导致成功的Friedel-Crafts烷基化,并产生14个新的含氧杂环丁烷的吲哚基分子。这种合成方法代表了第一种成功地在2-芳基-吲哚系统的3-位上安装氧杂环丁烷环的方法。几种类似物对人乳腺癌细胞系(MCF-7和MDA-MB-231)和胰腺癌细胞系(PANC-1)显示出强效细胞毒性(微摩尔GI 50值),尽管它们被证明作为微管蛋白聚合的抑制剂无效。比较秋水仙碱与OXi 8006-氧杂环丁烷类似物5 m的分子对接研究为这些分子与微管蛋白异二聚体上的秋水仙碱位点的差异相互作用提供了理论基础。
The oxetane functional group offers a variety of potential advantages when incorporated within appropriate therapeutic agents as a ketone surrogate. OXi8006, a 2-aryl-3-aroyl-indole analogue, functions as a small-molecule inhibitor of tubulin polymerization that has a dual mechanism of action as both an antiproliferative agent and a tumor-selective vascular disrupting agent. Replacement of the bridging ketone moiety in OXi8006 with an oxetane functional group has expanded structure activity relationship (SAR) knowledge and provided insights regarding oxetane incorporation within this class of molecules. A new synthetic method using an oxetane-containing tertiary alcohol subjected to Lewis acid catalyzed conditions led to successful Friedel–Crafts alkylation and yielded fourteen new oxetane-containing indole-based molecules. This synthetic approach represents the first method to successfully install an oxetane ring at the 3-position of a 2-aryl-indole system. Several analogues showed potent cytotoxicity (micromolar GI50values) against human breast cancer cell lines (MCF-7 and MDA-MB-231) and a pancreatic cancer cell line (PANC-1), although they proved to be ineffective as inhibitors of tubulin polymerization. Molecular docking studies comparing colchicine with the OXi8006-oxetane analogue5mprovided a rationale for the differential interaction of these molecules with the colchicine site on the tubulin heterodimer.
2-Aryl-3-芳酰吲哚盐(OXI8007)的合成类似于Combretastatin A-4,并用作血管破坏剂。
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