A Mild, Nonbasic Synthesis of Thioethers. The Copper-Catalyzed Coupling of Boronic Acids with N-Thio(alkyl, aryl, heteroaryl)imides
摘要:
graphicA new synthesis of thioethers is described. The reaction of boronic acids with aryl, heteroaryl, and alkyl N-thloimides in the presence of catalytic quantities of a Cu(l) carboxylate affords good to excellent yields of thioethers. This reaction takes place in the absence of a base under mild conditions (THF, 45-50 degreesC, 2.5-12 h) and represents an interesting complement to known methods for thioether synthesis.
Fragment-Based Identification of Amides Derived from <i>trans</i>-2-(Pyridin-3-yl)cyclopropanecarboxylic Acid as Potent Inhibitors of Human Nicotinamide Phosphoribosyltransferase (NAMPT)
作者:Anthony M. Giannetti、Xiaozhang Zheng、Nicholas J. Skelton、Weiru Wang、Brandon J. Bravo、Kenneth W. Bair、Timm Baumeister、Eric Cheng、Lisa Crocker、Yezhen Feng、Janet Gunzner-Toste、Yen-Ching Ho、Rongbao Hua、Bianca M. Liederer、Yongbo Liu、Xiaolei Ma、Thomas O’Brien、Jason Oeh、Deepak Sampath、Youming Shen、Chengcheng Wang、Leslie Wang、Hongxing Wu、Yang Xiao、Po-wai Yuen、Mark Zak、Guiling Zhao、Qiang Zhao、Peter S. Dragovich
DOI:10.1021/jm4015108
日期:2014.2.13
Potent, trans-2-(pyridin-3-yl)cyclopropane-carboxamide-containing inhibitors of the human nicotinamide phosphoribosyltransferase (NAMPT) enzyme were identified using fragment-based screening and structure-based design techniques. Multiple crystal structures were obtained of initial fragment leads, and this structural information was utilized to improve the biochemical and cell-based potency of the associated molecules. Many of the optimized compounds exhibited nanomolar antiproliferative activities against human tumor lines in in vitro cell culture experiments. In a key example, a fragment lead (13, K-D = 51 mu M) was elaborated into a potent NAMPT inhibitor (39, NAMPT IC50 = 0.0051 mu M, A2780 cell culture IC50 = 0.000 49 mu M) which demonstrated encouraging in vivo efficacy in an HT-1080 mouse xenograft tumor model.
US4124370A
申请人:——
公开号:US4124370A
公开(公告)日:1978-11-07
A Mild, Nonbasic Synthesis of Thioethers. The Copper-Catalyzed Coupling of Boronic Acids with <i>N</i>-Thio(alkyl, aryl, heteroaryl)imides
作者:Cecile Savarin、Jiri Srogl、Lanny S. Liebeskind
DOI:10.1021/ol026948a
日期:2002.11.1
graphicA new synthesis of thioethers is described. The reaction of boronic acids with aryl, heteroaryl, and alkyl N-thloimides in the presence of catalytic quantities of a Cu(l) carboxylate affords good to excellent yields of thioethers. This reaction takes place in the absence of a base under mild conditions (THF, 45-50 degreesC, 2.5-12 h) and represents an interesting complement to known methods for thioether synthesis.
The present invention relates to certain cyclopropyl amide compounds, pharmaceutical compositions comprising such compounds, and methods of treating cancer, including leukemias and solid tumors, inflammatory diseases, osteoporosis, atherosclerosis, irritable bowel syndrome, and other diseases and medical conditions, with such compounds and pharmaceutical compositions. The present invention also relates to certain cyclopropyl amide compounds for use in inhibiting nicotinamide phosphoribosyltransferase ("NAMPT").