2,5-Diarylisothiazolone: novel inhibitors of cytokine-induced cartilage destruction
摘要:
A series of 2,5-diarylisothiazolones is reported that inhibit the IL-lp-induced breakdown of bovine nasal septum cartilage in an organ culture assay. The synthesis and preliminary SAR of these compounds are described. These compounds represent a novel, nonpeptide lead series approach to the mediation of the chronic cartilage breakdown associated with arthritic disease. These compounds are relatively resistant to reductive metabolism by liver microsomal preparations and appear to inhibit cartilage breakdown by interfering with the proteolytic activation of matrix metalloproteinases. Copyright (C) 1996 Elsevier Science Ltd
2,5-Diarylisothiazolone: novel inhibitors of cytokine-induced cartilage destruction
摘要:
A series of 2,5-diarylisothiazolones is reported that inhibit the IL-lp-induced breakdown of bovine nasal septum cartilage in an organ culture assay. The synthesis and preliminary SAR of these compounds are described. These compounds represent a novel, nonpeptide lead series approach to the mediation of the chronic cartilage breakdown associated with arthritic disease. These compounds are relatively resistant to reductive metabolism by liver microsomal preparations and appear to inhibit cartilage breakdown by interfering with the proteolytic activation of matrix metalloproteinases. Copyright (C) 1996 Elsevier Science Ltd
Water-removable ynamide coupling reagent for racemization-free syntheses of peptides, amides, and esters
作者:Tao Liu、Xue Zhang、Zejun Peng、Junfeng Zhao
DOI:10.1039/d1gc03498g
日期:——
A novel ynamide coupling reagent, the by-product of which can be removed by water, was reported. It promotes the direct coupling between carboxylic acids and amines, alcohols or thiols to provide amides, peptides, esters and thioesters, respectively. No detectable racemization was observed for all the coupling reactions of carboxylic acids containing an α-chiral center. Importantly, a simple acidic
SUBSTITUTED BIS(HETERO)AROMATIC N--ETHYLPROPIOLAMIDES AND USE THEREOF FOR PRODUCTION OF MEDICAMENTS
申请人:Haurand Michael
公开号:US20090182020A1
公开(公告)日:2009-07-16
The present invention relates to substituted bis(hetero)aromatic N-ethylpropiolamides, methods for the production thereof, medicaments containing these compounds and the use thereof for the production of medicaments.
Carbondioxide is a harmful greenhouse gas, as well as a valuable resource. Here, a three-component cyclization reaction was developed for the synthesis of oxazolidine-2,4-diones by immobilizing CO2 under the electrochemistry and copper catalyst. Propargyl amide was used as the reaction substrate to capture carbondioxide to produce carboxyl anion, while selenide produced electrophilic receptor to
Electrocatalytic three-component reactions: synthesis of tellurium-containing oxazolidinone for anticancer agents
作者:Xue-Qi Zhou、Hai-Tao Tang、Fei-Hu Cui、Ying Liang、Shu-Hui Li、Ying-Ming Pan
DOI:10.1039/d3gc01288c
日期:——
assay against various types of human cancer cells. Compound 5e showed better antitumor activity than did the other oxazolidinone and selenium-containing oxazolidinone compounds. These findings have provided newsyntheticstrategies for organotellurium compounds and have shown a new perspective for the study of the biological activity of chalcogen-containing organic compounds.