Synthesis and activity of quinolinylmethyl P1′ α-sulfone piperidine hydroxamate inhibitors of TACE
摘要:
A series of alpha-sulfone piperidine hydroxamate TACE inhibitors 11a-n bearing a quinolinyl methyl P1' group was prepared, and their activity was compared to analogous alpha- and beta-sulfone piperidine hydroxamates with a butynyloxy P1' group. The quinolinyl methyl P1' group affords increased inhibitory enzyme activity relative to the corresponding butynyloxy P1' analogs in the alpha-sulfone piperidine hydroxamate series, and greater selectivity than the corresponding butynyloxy P1' analogs in the beta-sulfone piperidine hydroxamate series. (C) 2009 Elsevier Ltd. All rights reserved.
Copper-free Sandmeyer-type Reaction for the Synthesis of Sulfonyl Fluorides
作者:Tao Zhong、Meng-Ke Pang、Zhi-Da Chen、Bin Zhang、Jiang Weng、Gui Lu
DOI:10.1021/acs.orglett.0c00823
日期:2020.4.17
A copper-free Sandmeyer-type fluorosulfonylation reaction is reported. Utilizing Na2S2O5 and Selectfluor as the sulfur dioxide and fluorine sources, respectively, aryldiazonium salts were transformed into sulfonyl fluorides. The one-pot direct synthesis of sulfonyl fluorides from aromatic amines was also realized via in situ diazotization. The practicality of this method was demonstrated by the broad
据报道,无铜Sandmeyer型氟磺酰化反应。利用Na 2 S 2 O 5和Selectfluor分别作为二氧化硫和氟源,将芳基重氮盐转化为磺酰氟。还可以通过原位重氮化实现一锅直接由芳族胺合成磺酰氟的方法。天然产品和药物的广泛官能团耐受性,克级合成以及后期的氟磺酰化证明了该方法的实用性。
Copper-catalyzed three-component reaction of arylhydrazine hydrochloride, DABSO, and NFSI for the synthesis of arenesulfonyl fluorides
作者:Qijun Pan、Yongan Liu、Wan Pang、Jingjing Wu、Xiaoyu Ma、Xiaojun Hu、Yong Guo、Qing-Yun Chen、Chao Liu
DOI:10.1039/d1ob01697k
日期:——
This paper reports a convenient copper-catalyzed three-component conversion of arylhydrazine hydrochlorides to arenesulfonyl fluorides in good yields under mild conditions, using 1,4-diazabicyclo [2.2.2]octane bis(sulfur dioxide) (DABSO) as a sulfonyl source and N-fluorobenzenesulfonimide (NFSI) as a fluorine source based on a radical sulfur dioxide insertion and fluorination strategy. Notably, arylhydrazine
Arenesulfonyl Fluoride Synthesis via Copper‐free Sandmeyer‐type Fluorosulfonylation of Arenediazonium Salts
作者:Qiongzhen Lin、Zhanhu Ma、Changge Zheng、Xiao‐Jun Hu、Yong Guo、Qing‐Yun Chen、Chao Liu
DOI:10.1002/cjoc.202000175
日期:2020.10
of highly valuable arenesulfonylfluorides seriously hinders their further application in many research fields including medicinal chemistry and chemical biological, organic synthesis, polymer preparation, etc. We report herein a mild and efficient copper‐free Sandmeyer‐type fluorosulfonylation reaction of various arenediazonium salts to prepare valuable arenesulfonylfluorides using K2S2O5 as both
高价值的芳烃磺酰氟的有限供应严重阻碍了它们在许多研究领域的进一步应用,包括药物化学和化学生物学,有机合成,聚合物制备等。我们在此报告了一种温和而有效的各种铜氮杂唑鎓盐的无铜Sandmeyer型氟磺酰化反应,使用K 2 S 2 O 5作为还原剂和实用的磺酰基源结合N-氟苯磺酰亚胺作为有效的氟制备有价值的芳磺酰氟的方法。资源。考虑到总体实用性和范围,该方法学提供了一条吸引人的途径,可用于生产各种重要的芳烃磺酰氟。
Arenesulfonyl fluoride synthesis via one-pot copper-free Sandmeyer-type three-component reaction of aryl amine, K2S2O5, and NFSI
作者:Zhanhu Ma、Lingling Shan、Xiaoyu Ma、Xiaojun Hu、Yong Guo、Qing-Yun Chen、Chao Liu
DOI:10.1016/j.jfluchem.2022.109948
日期:2022.2
A one-pot procedure for the synthesis of arenesulfonyl fluorides from arylamine is developed with K2S2O5 and N-fluorobenzenesulfonimide (NFSI) as the sulfur dioxide surrogate and fluorine source, respectively. This method realizes the direct introduction of sulfonyl fluoride groups into arenes from abundant arylamines under transition-metal-free catalysis conditions, and features its mild and practical
采用 K 2 S 2 O 5和 N-氟苯磺酰亚胺 (NFSI) 分别作为二氧化硫替代物和氟源,开发了一种从芳胺合成芳基磺酰氟的一锅法。该方法实现了在无过渡金属催化条件下从丰富的芳胺中直接将磺酰氟基团引入芳烃中,具有条件温和实用、官能团耐受性好的特点。
Visible‐Light‐Mediated Synthesis of Sulfonyl Fluorides from Arylazo Sulfones
作者:Tien Tan Bui、Van Hieu Tran、Hee‐Kwon Kim
DOI:10.1002/adsc.202100951
日期:2022.1.18
Sulfonyl fluorides are useful motifs for a wide range of applications in organic synthesis including sulfur (VI) fluoride exchange-based “click chemistry.” Herein, a visible-light-mediated synthesis of sulfonyl fluoridesfrom arylazo sulfones is described. In the present study, K2S2O5 and N-fluorobenzenesulfonimide (NFSI) were used as the sulfonyl source and fluorinating agent, respectively, for v
磺酰氟是有机合成中广泛应用的有用基序,包括基于硫 (VI) 氟化物交换的“点击化学”。本文描述了一种由芳基砜合成磺酰氟的可见光介导合成方法。在本研究中,K 2 S 2 O 5和N-氟苯磺酰亚胺 (NFSI) 分别用作磺酰源和氟化剂,用于可见光介导的芳基砜的氟磺酰化,制备 60-85% 的各种磺酰氟。屈服。该协议是一种合成方法,可在室温下提供有用的磺酰氟结构。