Regioselective synthesis of some isoxazolines and isoxazolidines bearing caprolactam moiety
作者:Akın Sağirli、Yaşar Dürüst
DOI:10.1080/00397911.2018.1448934
日期:2018.6.18
room temperature and the best protocol have been found for the transformation of nitrones to N-methyl isoxazolidines is silver acetate in refluxing xylene. The structural identification of target compounds was established by IR, nuclear magnetic resonance (NMR), high resolution mass spectrometry (HRMS) spectra, and X-ray diffraction analyses. GRAPHICAL ABSTRACT
摘要异恶唑啉和异恶唑烷系列是通过芳香醛酮和腈氧化物与 N-乙烯基己内酰胺通过区域选择性 1,3-偶极环加成反应获得的,仅以中等产率产生 5-己内酰胺取代的区域异构体。使用不同条件优化环加成反应。用于将腈氧化物转化为异恶唑的一种是室温下的三乙胺,并且已发现将硝酮转化为 N-甲基异恶唑的最佳方案是回流二甲苯中的乙酸银。目标化合物的结构鉴定是通过红外、核磁共振 (NMR)、高分辨率质谱 (HRMS) 光谱和 X 射线衍射分析建立的。图形概要
Efficient Access to Isoxazoles from Alkenes
作者:Ashton Hamme II、Jianping Xu
DOI:10.1055/s-2008-1042906
日期:2008.4
The direct regioselectivesynthesis of 3,5-disubstituted isoxazoles was achieved in one reaction vessel through a sequence of reactions involving the net bromination of an electron-deficient alkene, in situ generation of a nitrile oxide, 1,3-dipolar cycloaddition, and loss of HBr from an intermediate 5,5-disubstituted bromoisoxazoline. This one-pot process enables the synthesis of 3,5-disubstituted
Solution-Phase Parallel Synthesis of Aryloxyimino Amides via a Novel Multicomponent Reaction among Aromatic (<i>Z</i>)-Chlorooximes, Isocyanides, and Electron-Deficient Phenols
作者:Valentina Mercalli、Mariateresa Giustiniano、Erika Del Grosso、Monica Varese、Hilde Cassese、Alberto Massarotti、Ettore Novellino、Gian Cesare Tron
DOI:10.1021/co5000882
日期:2014.11.10
A library of 41 aryloxyimino amides was prepared via solution phase parallel synthesis by extending the multicomponentreaction of (Z)-chlorooximes and isocyanides to the use of electron-deficient phenols. The resulting aryloxyiminoamide derivatives can be used as intermediates for the synthesis of benzo[d]isoxazole-3-carboxamides, dramatically reducing the number of synthetic steps required by other
通过溶液相平行合成,将(Z)-氯肟和异氰酸酯的多组分反应扩展到缺电子的酚的使用,制备了41种芳氧基亚氨基酰胺的文库。所得的芳氧基亚氨基酰胺衍生物可以用作合成苯并[ d ]异恶唑-3-羧酰胺的中间体,从而大大减少了文献报道的其他方法所需的合成步骤。
SUBSTITUTED AZOLE AROMATIC HETEROCYCLES AS INHIBITORS OF 11BETA-HSD-1
申请人:Bartberger D. Michael
公开号:US20080021022A1
公开(公告)日:2008-01-24
Compounds of formula I and IV are described and have therapeutic utility, particularly in the treatment of diabetes, obesity and related conditions and disorder:
wherein the variables A-B, R
1
, R
2
, m, and Q are described herein.
[EN] C-7 ISOXAZOLINYL QUINOLONE/NAPHTHYRIDINE DERIVATIVES USEFUL AS ANTIBACTERIAL AGENTS<br/>[FR] DÉRIVÉS DE C-7 ISOXAZOLINYL QUINOLONE/NAPHTHYRIDINE CONVENANT COMME AGENTS ANTI-BACTÉRIENS
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2010093341A1
公开(公告)日:2010-08-19
The present invention relates to C-7 isoxazolyl quinoline/naphthyridine derivatives useful as antimicrobial compounds, pharmaceutical compositions comprising said derivatives and the use of said derivatives and pharmaceutical compositions as antimicrobial agents against pathogenic microorganisms, particularly against resistant microbes.