Synthesis and biological evaluation of 2,3-diarylpyrazines and quinoxalines as selective COX-2 inhibitors
摘要:
Several 2,3-diaryl pyrazines and quinoxalines with 4-sulfamoyl (SO2NH2)/methylsulfonyl (SO2Me)-phenyl pharmaco-phores have been synthesized and evaluated for the cyclooxygenase (COX-1/COX-2) inhibitory activity. Smaller groups such as methoxy, methyl and fluoro when substituted at/around position-4 of the adjacent phenyl ring, have great impact on the selective COX-2 inhibitory activity of the series. Many potential compounds were obtained from a brief structure-activity relationship (SAR) study. Two of these, compounds 11 and 25 exhibited excellent in vivo activity in the established animal model of inflammation. Since compound 25 possessed an amenable sulfonamide group, two of its prodrugs 48 and 49 were also synthesized. Both of them have excellent in vivo potential, and represent a new class of COX-2 inhibitor. (C) 2004 Elsevier Ltd. All rights reserved.
[EN] CHEMICAL COMPOUNDS<br/>[FR] COMPOSES CHIMIQUES
申请人:ASTRAZENECA AB
公开号:WO2004011410A1
公开(公告)日:2004-02-05
Compounds of formula (I):wherein variable groups are as defined within; for use in the inhibition of 11βHSD1 are described.
式(I)的化合物:其中变量基团如定义内;用于抑制11βHSD1。
Synthesis and catalytic reactivity in Friedel–Crafts acylations of monobridged bis(cyclopentadienyl)molybdenum(I) carbonyl complexes
作者:Xin Long Yan、Ning Zhang、Zhi Qiang Hao、Zhi Hong Ma、Zhan Gang Han、Xue Zhong Zheng、Jin Lin
DOI:10.1016/j.poly.2018.03.021
日期:2018.6
analysis. Friedel–Crafts acylation reactions of anisole derivatives with aromatic or aliphatic acyl chlorides catalyzed by complexes 4–6 showed that all of these monobridged bis(cyclopentadienyl)molybdenumcarbonyl complexes have catalytic activity.
Aluminum dodecatungstophosphate (AlPW12O40) as a non-hygroscopic Lewis acid catalyst for the efficient Friedel–Crafts acylation of aromatic compounds under solvent-less conditions
Stable and non-hygroscopic aluminum dodecatungstophosphate (AlPW12O40), which is prepared easily from cheap and commercially available compounds was found to be an effective catalyst for Friedel–Crafts acylation reactions using carboxylic acids, acetic anhydride and benzoyl chloride in the absence of solvent under mild reaction conditions.
稳定且不吸湿的十二碳二磷酸铝(AlPW 12 O 40),可以容易地由廉价且可商购的化合物制备,被发现是在不存在羧酸的情况下使用羧酸,乙酸酐和苯甲酰氯进行Friedel-Crafts酰化反应的有效催化剂。在温和的反应条件下使用溶剂。
Ketones
申请人:Barton John Peter
公开号:US20050272036A1
公开(公告)日:2005-12-08
Compounds of formula (I): wherein variable groups are as defined within; for use in the inhibition of 11βHSD1 are described.
描述了式(I)的化合物:其中变量基团如定义的那样;用于抑制11βHSD1。
Behaghel; Ratz, Chemische Berichte, 1939, vol. 72, p. 1257,1269