Benzisothiazolones as modulators of macrophage migration inhibitory factor
摘要:
Substituted N-phenylbenzisothiazolones have been investigated as inhibitors of the tautomerase activity of the proinflammatory cytokine MIF (macrophage migration inhibitory factor). Numerous compounds were found to possess antagonist activity in the low micromolar range with the most potent being the 6-hydroxy analog 1w. Compound 1w and the p-cyano analog 1c were also shown to exhibit significant inhibition of the binding of MIF to its transmembrane receptor CD74. Consistently, both compounds were also found to retard the MIF-dependent phosphorylation of ERK1/2 in human synovial fibroblasts. (C) 2011 Elsevier Ltd. All rights reserved.
Nickel-Catalyzed Denitrogenative Cross-Coupling Reaction of 1,2,3-Benzotriazin-4(3<i>H</i>)-ones with Organoboronic Acids: An Easy Access to<i>Ortho</i>-Arylated and Alkenylated Benzamides
作者:Madasamy Hari Balakrishnan、Kotturaja Sathriyan、Subramaniyan Mannathan
DOI:10.1021/acs.orglett.8b01401
日期:2018.7.6
A novel nickel-catalyzed approach to synthesize ortho-arylated and alkenylated benzamides in good to high yields via a denitrogenative cross-coupling reaction of 1,2,3-benzotriazin-4(3H)-ones with organoboronic acids is described. The reaction proceeds through a five-membered azanickelacyclic intermediate with the extrusion of a nitrogen molecule. Moreover, the resulting ortho-arylated benzamides were
Synthesis and biological relationships of 3′,6-substituted 2-phenyl-4-quinolone-3-carboxylic acid derivatives as antimitotic agents
作者:Ya-Yun Lai、Li-Jiau Huang、Kuo-Hsiung Lee、Zhiyan Xiao、Kenneth F. Bastow、Takao Yamori、Sheng-Chu Kuo
DOI:10.1016/j.bmc.2004.09.041
日期:2005.1
decreased significantly if a chlorine or methoxy group replaced the fluorine atom. 3'-Fluoro-6-methoxy-2-phenyl-4-quinolone-3-carboxylic acid (68) had the highest in vitro cytotoxic activity among all tested carboxylic acid derivatives and their salts. The mechanism of action may be similar, but not identical, to that of tubulin binding drugs, such as navelbine and taxol. Compound 68 merits further investigation
Efficient Manganese/Copper Bimetallic Catalyst for<i>N</i>-Arylation of Amides and Sulfonamides Under Mild Conditions in Water
作者:Yong-Chua Teo、Fui-Fong Yong、Idzham Khalid Ithnin、Siew-Hui Trionna Yio、Zhiyin Lin
DOI:10.1002/ejoc.201201218
日期:2013.1
An efficient and mild method using a bimetallic MnF2/CuI catalyst at 60 °C in water was developed for the N-arylation of amides and sulfonamides with aryl halides. A variety of functionalized amides and sulfonamides were coupled with different substituted aryl halides to afford the corresponding N-arylated products in good to excellent yields (up to 97 %).
开发了一种在 60 °C 下在水中使用双金属 MnF2/CuI 催化剂的有效且温和的方法,用于酰胺和磺酰胺与芳基卤化物的 N-芳基化。各种官能化酰胺和磺酰胺与不同的取代芳基卤化物偶联,以良好至极好的产率(高达 97%)提供相应的 N-芳基化产物。
Benzisothiazolones as modulators of macrophage migration inhibitory factor
作者:William L. Jorgensen、Alexander Trofimov、Xin Du、Alissa A. Hare、Lin Leng、Richard Bucala
DOI:10.1016/j.bmcl.2011.05.127
日期:2011.8
Substituted N-phenylbenzisothiazolones have been investigated as inhibitors of the tautomerase activity of the proinflammatory cytokine MIF (macrophage migration inhibitory factor). Numerous compounds were found to possess antagonist activity in the low micromolar range with the most potent being the 6-hydroxy analog 1w. Compound 1w and the p-cyano analog 1c were also shown to exhibit significant inhibition of the binding of MIF to its transmembrane receptor CD74. Consistently, both compounds were also found to retard the MIF-dependent phosphorylation of ERK1/2 in human synovial fibroblasts. (C) 2011 Elsevier Ltd. All rights reserved.