Copper-Catalysed (Diacetoxyiodo)benzene-Promoted Aerobic Esterification Reaction: Synthesis of Oxamates from Acetoacetamides
作者:Zhiguo Zhang、Xiaolong Gao、Haifeng Yu、Guisheng Zhang、Jianming Liu
DOI:10.1002/adsc.201800616
日期:2018.9.3
A copper‐catalysed (diacetoxyiodo)benzene‐promoted aerobic esterification reaction of acetoacetamides was developed for the synthesis of oxamates, which are useful precursors in synthetic organic chemistry. This practical and mild synthetic approach proceeded at 25 °C under open‐air conditions and afforded methyl 2‐oxo‐2‐(phenylamino)acetates in good to excellent yields combined with C−C σ‐bond cleavage
Oxamyl dipeptide caspase inhibitors developed for the treatment of stroke
作者:Steven D. Linton、Teresa Aja、Peter R. Allegrini、Thomas L. Deckwerth、Jose-Luis Diaz、Bastian Hengerer、Julia Herrmann、Kathy G. Jahangiri、Joerg Kallen、Donald S. Karanewsky、Steven P. Meduna、Kip Nalley、Edward D. Robinson、Silvio Roggo、Giorgio Rovelli、Andre Sauter、Robert O. Sayers、Albert Schmitz、Robert Smidt、Robert J. Ternansky、Kevin J. Tomaselli、Brett R. Ullman、Christoph Wiessner、Joe C. Wu
DOI:10.1016/j.bmcl.2003.12.106
日期:2004.5
Structural modifications were made to a previously described acyl dipeptide caspase inhibitor, leading to the oxamyl dipeptide series. Subsequent SAR studies directed toward the warhead, P2, and P4 regions of this novel peptidomimetic are described herein. (C) 2004 Elsevier Ltd. All rights reserved.
Semi-Synthesis of Chloroxaloterpin A and B and Their Antifungal Activity against <i>Botrytis cinerea</i>
作者:Linlin Zhang、Xiaochen Wang、Yuhui Bi、Zhiguo Yu
DOI:10.1021/acs.jafc.2c01242
日期:2022.6.15
Asymmetric Transfer Hydrogenation of α-Keto Amides; Highly Enantioselective Formation of Malic Acid Diamides and α-Hydroxyamides
作者:Shweta K. Gediya、Vijyesh K. Vyas、Guy J. Clarkson、Martin Wills
DOI:10.1021/acs.orglett.1c02830
日期:2021.10.15
The asymmetric transfer hydrogenation (ATH) of α-keto-1,4-diamides using a tethered Ru/TsDPEN catalyst was achieved in high ee. Studies on derivatives identified the structural elements which lead to the highest enantioselectivities in the products. The α-keto-amide reduction products have been converted to a range of synthetically valuable derivatives.
使用系留的 Ru/TsDPEN 催化剂在高 ee 下实现了 α-酮基-1,4-二酰胺的不对称转移氢化(ATH)。对衍生物的研究确定了导致产品中最高对映选择性的结构元素。α-酮酰胺还原产物已转化为一系列具有合成价值的衍生物。
First-in-Class Pan Caspase Inhibitor Developed for the Treatment of Liver Disease
作者:Steven D. Linton、Teresa Aja、Robert A. Armstrong、Xu Bai、Long-Shiuh Chen、Ning Chen、Brett Ching、Patricia Contreras、Jose-Luis Diaz、Craig D. Fisher、Lawrence C. Fritz、Patricia Gladstone、Todd Groessl、Xin Gu、Julia Herrmann、Brad P. Hirakawa、Niel C. Hoglen、Kathy G. Jahangiri、Vincent J. Kalish、Donald S. Karanewsky、Lalitha Kodandapani、Joseph Krebs、Jeff McQuiston、Steven P. Meduna、Kip Nalley、Edward D. Robinson、Robert O. Sayers、Kristen Sebring、Alfred P. Spada、Robert J. Ternansky、Kevin J. Tomaselli、Brett R. Ullman、Karen L. Valentino、Suzanne Weeks、David Winn、Joe C. Wu、Pauline Yeo、Cheng-zhi Zhang
DOI:10.1021/jm050307e
日期:2005.11.1
A series of oxamyl dipeptides were optimized for pan caspase inhibition, anti-apoptotic cellular activity and in vivo efficacy. This structure-activity relationship study focused on the P4 oxamides and warhead moieties. Primarily on the basis of in vitro data, inhibitors were selected for study in a murine model of alpha-Fas-induced liver injury. IDN-6556 (1) was further profiled in additional in vivo