Heck Reactions of Acrolein or Enones and Aryl Bromides – Synthesis of 3‐Aryl Propenals or Propenones and Consecutive Application in Multicomponent Pyrazole Syntheses
作者:Marvin Stephan、Jesco Panther、Fabio Wilbert、Pauline Ozog、Thomas J. J. Müller
DOI:10.1002/ejoc.202000066
日期:2020.4.16
The Heck reaction of (hetero)aryl bromides and acrolein or vinyl ketones using CataCXium® Ptb as a ligand, NaHCO3 as a base, and nBu4NCl provides an efficient access to 3‐(hetero)aryl propenals/propenones, which are directly employed in consecutive multicomponent syntheses of pyrazoles in a one‐pot fashion.
使用CataCXium®Ptb作为配体,NaHCO 3作为碱和n Bu 4 NCl进行(杂)芳基溴化物和丙烯醛或乙烯基酮的Heck反应,可以有效地获得3-(杂)芳基丙烯/丙烯酮。以单罐方式直接用于吡唑的连续多组分合成中。
Design, synthesis, and biological evaluation of 2-(5-methyl-1H-pyrazol-1-yl) acetamide derivatives as androgen receptor antagonists
Androgen receptor (AR) signaling is often activated in prostate cancer (PCa) cells, and blockage of this signaling by AR antagonists is an important strategy in PCa therapy. In this study, we designed and synthesized a series of 2-(5-methyl-1H-pyrazol-1-yl) acetamide derivatives, and evaluated their biological activities. AR luciferase reporter assay revealed compound 6f (59.7%) as a potent AR antagonist
Discovery of novel 5-methyl-1<i>H</i>
-pyrazole derivatives as potential antiprostate cancer agents: Design, synthesis, molecular modeling, and biological evaluation
driving force for the progression of prostate cancer (PCa), and AR has been proved to be an effective therapeutic target even for castration‐resistant prostate cancer (CRPC). Herein, structural modification via a fragments splicing strategy was performed based on two lead compounds T3 and 10e, leading to the discovery of a series of 5‐methyl‐1H‐pyrazolederivatives. AR reporter gene assay revealed compounds
[EN] SULFONYLAMINOPYRIDINE COMPOUNDS, COMPOSITIONS AND METHODS OF USE<br/>[FR] COMPOSÉS SULFONYLAMINOPYRIDINE, COMPOSITIONS ET PROCÉDÉS D'UTILISATION ASSOCIÉS
申请人:HOFFMANN LA ROCHE
公开号:WO2016001341A1
公开(公告)日:2016-01-07
Provided are sulfonylaminopyridine compounds that are inhibitors of ITK kinase, compositions containing these compounds and methods for treating diseases mediated by ITK kinase. In particular, provided are compounds of Formula (I), (II) or (III), stereoisomers, tautomers, solvates, prodrugs or pharmaceutically acceptable salts thereof, where n, R1, R2, R3, R6 and R7 are defined herein, pharmaceutical compositions comprising the compound and a pharmaceutically acceptable carrier, adjuvant or vehicle, methods of using the compound or composition in therapy, for example, for treating a disease or condition mediated by ITK kinase in a patient.
A simple, highly efficient, and environmentally friendly method for the synthesis of substituted 1H-pyrazoles by one-pot condensation reaction of α,β-unsaturated carbonyl compounds with tosyl hydrazide in water was developed. The reaction system exhibited tolerance with various functional groups, Aromatic moiety with both electron-rich and electron-deficient substituents could give desired products