Synthesis of AntiproliferativeCephalotaxus Esters and Their Evaluation against Several Human Hematopoietic and Solid Tumor Cell Lines: Uncovering Differential Susceptibilities to Multidrug Resistance
作者:Joseph D. Eckelbarger、Jeremy T. Wilmot、Matthew T. Epperson、Chandar S. Thakur、David Shum、Christophe Antczak、Leonid Tarassishin、Hakim Djaballah、David Y. Gin
DOI:10.1002/chem.200701998
日期:2008.5.9
isolated from the Cephalotaxus genus. Convergent syntheses of these four natural products are described, each involving novel synthetic methods and strategies. These syntheses enabled evaluation of several advanced natural and non-natural compounds against an array of human hematopoietic and solidtumor cells. Potent cytotoxicity was observed in several cell lines previously not challenged with these
CEPHALOTAXUS ESTERS, METHODS OF SYNTHESIS, AND USES THEREOF
申请人:Gin David
公开号:US20110071097A1
公开(公告)日:2011-03-24
The present invention provides novel cephalotaxus esters, syntheses thereof, and intermediates thereto. The invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of using said compounds or compositions in the treatment of proliferative diseases (e.g., benign neoplasm, cancer, inflammatory disease, autoimmune disease, diabetic retinopathy) and infectious disease. The invention further provides methods of using said compounds or compositions in the treatment of multidrug resistant cancer.
Anaerobic Hydroxylation of C(sp<sup>3</sup>)–H Bonds Enabled by the Synergistic Nature of Photoexcited Nitroarenes
作者:Joshua M. Paolillo、Alana D. Duke、Emma S. Gogarnoiu、Dan E. Wise、Marvin Parasram
DOI:10.1021/jacs.2c13502
日期:2023.2.8
availability of the nitroarene, the sole mediator of the reaction. Because of the anaerobic conditions of the transformation, a noteworthy expansion in substrate scope can be obtained compared to prior reports. Mechanistic studies support that the photoexcited nitroarenes engage in successive hydrogen atom transfer and radical recombination events with hydrocarbons, leading to N-arylhydroxylamine ether intermediates