羰基构成了几种药物分子和材料的组成部分;因此,羰基化化合物的合成对于合成化学家和药物化学家来说仍然是一个有趣的研究领域。处理有毒 CO 气体有几个局限性;因此,使用安全有效的技术进行原位或非原位从无毒且廉价的前体中产生一氧化碳是非常可取的。在已探索用于产生 CO 气体的几种前体中,氯仿由于其成本效益高且易于获得,可证明是一种有前途的 CO 替代品。然而,基于氯仿的一锅式羰基化反应需要强碱性条件才能水解氯仿,这可能会影响底物的官能团耐受性和放大反应。这些限制可以通过可用于非原位的两室反应器 (COware) 来克服在一个室中通过氯仿水解产生 CO,并在温和条件下在另一个室中促进安全的羰基化反应。通过钯催化的医学相关杂环核心(即异喹啉和喹啉)的氨基羰基化,探索了这种“氯仿-COware”技术的多功能性。
The trifluoromethylation of aromatic and heteroaromatic cores has attracted considerable interest in recent years due to its pharmacological relevance. We studied the extension of a simple copper-catalyzedtrifluoromethylation protocol to alkoxy-substituted iodopyridines and their benzologs. The trifluoromethylation proceeded smoothly in all cases, and the desired compounds were isolated and characterized
由于其药理学相关性,芳香和杂芳香核的三氟甲基化近年来引起了相当大的兴趣。我们研究了将简单的铜催化三氟甲基化方案扩展到烷氧基取代的碘代吡啶及其苯并类似物。三氟甲基化在所有情况下都顺利进行,所需的化合物被分离和表征。在 3-iodo-4-甲氧基喹啉的三氟甲基化中,我们观察到伴随的 ON 甲基迁移,导致三氟甲基化喹诺酮作为产物。总体而言,所描述的程序应有助于在药物化学中更广泛地使用铜催化的三氟甲基化。
PHENYLETHYNYL-SUBSTITUTED BENZENES AND HETEROCYCLES FOR THE TREATMENT OF CANCER
申请人:UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION
公开号:US20180369222A1
公开(公告)日:2018-12-27
Halogenated phenylethynyl-substituted heterocycles that possess either an N-alkylamino or N,N-dialkylarnino group attached to the heterocycle or halogenated phenylethynyl-substituted benzenes that a nitrogen-containing heterocycle attached to the benzene inhibit the proliferation cancer cells and are useful antineoplastic agents.
Phenylethynyl-substituted benzenes and heterocycles for the treatment of cancer
申请人:UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION
公开号:US10449186B2
公开(公告)日:2019-10-22
Halogenated phenylethynyl-substituted heterocycles that possess either an N-alkylamino or N,N-dialkylamino group attached to the heterocycle or halogenated phenylethynyl-substituted benzenes that a nitrogen-containing heterocycle attached to the benzene inhibit the proliferation cancer cells and are useful antineoplastic agents.
Access to <i>N</i>-Aryl (Iso)quinolones via Aryne-Induced Three-Component Coupling Reaction
作者:Qiang Yan、Zhe Zhuang、Rong Fan、Jingwen Wang、Tuanli Yao、Jiajing Tan
DOI:10.1021/acs.orglett.3c04385
日期:2024.3.8
N-Aryl (iso)quinolones are of increasing interest in material and medicinal chemistry, although general routes for their provision remain underexplored, especially when compared with its N-alkyl counterparts. Herein, we report a modular and transition-metal-free, aryne-induced three-component coupling protocol that allows the facile synthesis of structurally diverse N-aryl (iso)quinolonesfrom readily
Simplified Modular Access to Enantiopure 1,2-Aminoalcohols via Ni-Electrocatalytic Decarboxylative Arylation
作者:Jiawei Sun、Hirofumi Endo、Megan A. Emmanuel、Martins S. Oderinde、Yu Kawamata、Phil S. Baran
DOI:10.1021/jacs.3c14119
日期:2024.3.6
Chiral aminoalcohols are omnipresent in bioactive compounds. Conventional strategies to access this motif involve multiple-step reactions to install the requisite functionalities stereoselectively using conventional polar bond analysis. This study reveals that a simple chiral oxazolidine-based carboxylic acid can be readily transformed to substituted chiral aminoalcohols with high stereochemical control