[EN] PENICILLIN-BINDING PROTEIN INHIBITORS<br/>[FR] INHIBITEURS DE PROTÉINE DE LIAISON À LA PÉNICILLINE
申请人:VENATORX PHARMACEUTICALS INC
公开号:WO2019226931A1
公开(公告)日:2019-11-28
Described herein are certain boron-containing compounds, compositions, preparations and their use as modulators of the transpeptidase function of bacterial penicillin-binding proteins and as antibacterial agents. In some embodiments, the compounds described herein inhibit penicillin-binding proteins. In certain embodiments, the compounds described herein are useful in the treatment of bacterial infections.
Visible Light-Induced Borylation of C–O, C–N, and C–X Bonds
作者:Shengfei Jin、Hang. T. Dang、Graham C. Haug、Ru He、Viet D. Nguyen、Vu T. Nguyen、Hadi D. Arman、Kirk S. Schanze、Oleg V. Larionov
DOI:10.1021/jacs.9b12519
日期:2020.1.22
photocatalytic borylation method that can effect borylation of a wide range of substrates, including strong C‒O bonds, remains elusive. Herein, we report a general, metal-free visible light-induced photocatalytic borylation platform that enables borylation of electron rich derivatives of phenols and anilines, chloroarenes, as well as other haloarenes. The reac-tion exhibits excellent functional group
硼酸是中心重要的功能基序和合成前体。可见光诱导的硼酸化可以提供结构多样化的硼酸盐,但一种广泛有效的光催化硼酸化方法可以影响包括强 C-O 键在内的多种底物的硼化,仍然难以实现。在此,我们报告了一种通用的、无金属的可见光诱导光催化硼化平台,该平台能够对苯酚和苯胺、氯芳烃以及其他卤代芳烃的富电子衍生物进行硼化。该反应表现出优异的官能团耐受性,正如一系列结构复杂底物的硼化反应所证明的那样。值得注意的是,该反应是由吩噻嗪催化的,这是一种简单的有机光催化剂,MW< 200通过质子耦合电子转移机制介导了以前无法实现的可见光诱导的苯酚衍生物单电子还原,还原电位为~-3 V vs SCE。机理研究指出了光催化剂-碱相互作用的关键作用。
[EN] BORONIC ACID DERIVATIVES AND THERAPEUTIC USES THEREOF<br/>[FR] DÉRIVÉS D'ACIDE BORONIQUE ET LEURS UTILISATIONS THÉRAPEUTIQUES
申请人:REMPEX PHARMACEUTICALS INC
公开号:WO2016003929A1
公开(公告)日:2016-01-07
Disclosed herein are antimicrobial compounds compositions, pharmaceutical compositions, the use and preparation thereof. Some embodiments relate to boronic acid derivatives and their use as therapeutic agents.
Free Radical Pathway Cleavage of C—O Bonds for the Synthesis of Alkylboron Compounds
作者:Xi Lu、Zhen‐Qi Zhang、Lu Yu、Ben Zhang、Bing Wang、Tian‐Jun Gong、Chang‐Lin Tian、Bin Xiao、Yao Fu
DOI:10.1002/cjoc.201800500
日期:2019.1
polarized alkyl tosylate C—O bonds to the fairly limited number of C—O bonds able to participate in free radical cleavagepathways. The mechanistic studies suggested that in situ‐generated silver(0) catalytic species were the active catalytic species and played a key role in the radical pathwaycleavage of C—O bonds.
Discovery of Cyclic Boronic Acid QPX7728, an Ultrabroad-Spectrum Inhibitor of Serine and Metallo-β-lactamases
作者:Scott J. Hecker、K. Raja Reddy、Olga Lomovskaya、David C. Griffith、Debora Rubio-Aparicio、Kirk Nelson、Ruslan Tsivkovski、Dongxu Sun、Mojgan Sabet、Ziad Tarazi、Jonathan Parkinson、Maxim Totrov、Serge H. Boyer、Tomasz W. Glinka、Orville A. Pemberton、Yu Chen、Michael N. Dudley
DOI:10.1021/acs.jmedchem.9b01976
日期:2020.7.23
toward expanding the spectrum to allow treatment of a wider range of organisms. Through key structural modifications of a bicyclic lead, stepwise gains in spectrum of inhibition were achieved, ultimately resulting in QPX7728 (35). This compound displays a remarkably broadspectrum of inhibition, including class B and class D enzymes, and is little affected by porin modifications and efflux. Compound