Rh-Catalyzed annulations of N-methoxybenzamides with ketenimines: synthesis of 3-aminoisoindolinones and 3-diarylmethyleneisoindolinones with strong aggregation induced emission properties
A series of derivatives were synthesized and studied with the aim to investigate the structure-activity relationships of the two P-glycoprotein (P-gp) modulators elacridar and tariquidar. Then, different aryl-substituted amides were inserted, and to explore the effects of varying the amide function, the corresponding isosteric ester derivatives and some alkylamine analogues were synthesized. The new
Palladium‐Catalyzed Enantioselective Isodesmic C–H Iodination of Phenylacetic Weinreb Amides
作者:Hang Wang、Chunlin Zhou、Zezhong Gao、Shangda Li、Gang Li
DOI:10.1002/anie.202300905
日期:——
Isodesmic reactions represent mild alternatives to other chemical transformations that require harsh oxidizing agents or highly reactive intermediates. However, enantioselective isodesmic C−Hfunctionalization is unknown. Herein, an unprecedented highly enantioselective isodesmic C−Hfunctionalization to access chiral iodinated phenylacetic Weinrebamides via desymmetrization and kinetic resolution
Structure−Activity Relationships Studies in a Series of <i>N</i>,<i>N</i>-Bis(alkanol)amine Aryl Esters as P-Glycoprotein (Pgp) Dependent Multidrug Resistance (MDR) Inhibitors
As a continuation Or a previous research, a series of N,N-bis(alkanol)amine aryl esters, as Pgp-dependent MDR inhibitors, was; designed and synthesized. The aromatic ester portions are suitably modulated, and new aryl rings (Ar-1 and Ar-2) were combined with trans-3-(3,4,5-trimethoxyphenyl)-vinyl, 3,4,5-trimethoxybenzyl and anthracene moieties that were present in the most potent previously Studied compounds. The new compounds showed I wide range of potencies and efficacies Oil doxorubicin-resistant erythroleukemia K562 cells (K562/DOX) in the pirarubicin uptake assay. Selected compounds (5, 6, 8, 9, and 21) were further Studied, evaluating their action on doxorubicin cytotoxicity potentiation oil K562 cells; they significantly enhanced doxorubicin cytotoxicity oil K562/DOX cells, confirming the results obtained with pirarubicin. Compound 9 Shows file Most promising properties as it was able to nearly completely reverse Pgp-dependent pirarubicin extrusion at nanomolar closes and increased the cytotoxicity of doxorubicin with a reversal fold (RF) of 19.1 at 3 mu M dose.
The Reaction of α-Haloketones with Bases
作者:William G. Dauben、Claude F. Hiskey、Merrill A. Muhs
DOI:10.1021/ja01128a069
日期:1952.4
Barbier et al., Bulletin de la Societe de Chimie Biologique, 1952, vol. 34, p. 1005,1012