Methods for synthesizing organoboronic compounds and products thereof
申请人:Walter Armin
公开号:US20050119226A1
公开(公告)日:2005-06-02
Organoboronic acids, for example Cbz-(R)-Phe-(S)-Pro-(R)-Mpg-B(OH)
2
, are made by hydrolysing their diethanolamine adducts under conditions which avoid substantial C—B bond breakage. The product acids are substantially free of degradation product derived from cleavage of the C—B bond thereof. The acids are used to make base addition salts thereof. The salts are formulated into anti-thrombotic pharmaceutical formulations.
Site-Selective Mono-Oxidation of 1,2-Bis(boronates)
作者:Lu Yan、James P. Morken
DOI:10.1021/acs.orglett.9b01204
日期:2019.5.17
Site-selective oxidation of vicinal bis(boronates) is accomplished through the use of trimethylamineN-oxide in 1-butanol solvent. The reaction occurs with good efficiency and selectivity across a range of substrates, providing 2-hydro-1-boronic esters which are shown to be versatile intermediates in the synthesis of chiral building blocks.
[EN] PENICILLIN-BINDING PROTEIN INHIBITORS<br/>[FR] INHIBITEURS DE PROTÉINE DE LIAISON À LA PÉNICILLINE
申请人:VENATORX PHARMACEUTICALS INC
公开号:WO2021108023A1
公开(公告)日:2021-06-03
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.
Dihydroxylation of Olefins
Catalyzed by Polystyrene-<i>sg</i>-imidazolium
Resin-Supported Osmium Complex
作者:Sang-Hyeup Lee、Yoon-Sik Lee、Bong-Hyun Jun、Jong-Ho Kim、Juyoung Park、Homan Kang
DOI:10.1055/s-2008-1078274
日期:——
formation of the osmium complex occurredonly on the surface of the polymer support. This polymer catalystswas used in the dihydroxylation of various olefins, revealed excel-lent catalytic activity, and could be reused up to three times Key words: osmium, imidazolium, heterogeneous catalysis Osmium-catalyzeddihydroxylation (DH) and asymmetricdihydroxylation (AD) with chiral ligands are some of themost
摘要:将四氧化锇固定在咪唑鎓基聚合物聚(1-甲基咪唑鎓甲基苯乙烯)表面接枝聚苯乙烯(PS-sg-IM)树脂上。为了表征聚合物-咪唑鎓负载的锇配合物催化剂,傅里叶变换红外 (FT-IR) 光谱、场发射扫描电子显微镜 (FE-SEM)、能量色散 X 射线显微分析 (EDX) 和感应进行了耦合等离子体原子发射光谱(ICP-AES)实验,我们证实锇络合物的形成仅发生在聚合物载体的表面。该聚合物催化剂用于各种烯烃的二羟基化反应,表现出优异的催化活性,可重复使用3次 关键词:锇,咪唑,多相催化 锇催化的二羟基化 (DH) 和不对称二羟基化 (AD) 与手性配体是用于从烯烃构建邻二醇的一些最有用的方法。2 虽然锇催化的 DH 和 AD 反应可用于药物、天然产物、精细化学品等的合成,但最终产品中有毒锇的高成本和可能污染限制了其在工业应用中的应用。
[EN] BETA-LACTAMASE INHIBITORS<br/>[FR] INHIBITEURS DE BÊTA-LACTAMASES
申请人:VENATORX PHARMACEUTICALS INC
公开号:WO2017044828A1
公开(公告)日:2017-03-16
Described herein are compounds and compositions that modulate the activity of beta -lactamases. In some embodiments, the compounds described herein inhibit beta-lactamase. In certain embodiments, the compounds described herein are useful in the treatment of bacterial infections.