[EN] 5- OR 7-AZAINDAZOLES AS BETA-LACTAMASE INHIBITORS<br/>[FR] AZAINDAZOLES EN 5 OU 7 UTILISÉS COMME INHIBITEURS DE BÊTA-LACTAMASE
申请人:ACRAF
公开号:WO2020178316A1
公开(公告)日:2020-09-10
The present invention relates to β-lactamase inhibitors having the following general formula (I): wherein R1-R4 and X1-X2 are defined in the specification, pharmaceutical composition thereof, and use thereof for the treatment of a bacterial infection, alone or in combination with β-lactam antibiotics and/or other antibiotics and/or other β-lactamase inhibitors.
A Unified Approach to Couple Aromatic Heteronucleophiles to Azines and Pharmaceuticals
作者:Ryan G. Anderson、Brianna M. Jett、Andrew McNally
DOI:10.1002/anie.201807322
日期:2018.9.17
Coupling aromatic heteronucleophiles to arenes is a common way to assemble drug‐like molecules. Many methods operate via nucleophiles intercepting organometallic intermediates, via Pd‐, Cu‐, and Ni‐catalysis, that facilitate carbon‐heteroatom bond formation and a variety of protocols. We present an alternative, unified strategy where phosphonium salts can replicate the behavior of organometallic intermediates
将芳香族异核试剂与芳烃偶联是组装类药物分子的常见方法。许多方法通过亲核试剂拦截有机金属中间体,通过 Pd、Cu 和 Ni 催化来进行,从而促进碳杂原子键的形成和各种方案。我们提出了一种替代的、统一的策略,其中鏻盐可以复制有机金属中间体的行为。在一组狭窄的反应条件下,多种芳香族杂核亲核试剂可以与吡啶和二嗪偶联,这在金属催化偶联中经常出现问题,例如在具有多个极性官能团的复杂结构中无法获得(假)卤化物前体。
Visible-Light Excitation of Quinolinone-Containing Substrates Enables Divergent Radical Cyclizations
作者:Kiho Kim、Hangyeol Choi、Dahye Kang、Sungwoo Hong
DOI:10.1021/acs.orglett.9b01155
日期:2019.5.3
herein is the photochemical activity of quinolinone-containing substrates that directly reach an excited state upon light absorption to trigger radical-based bond-forming processes. The presented transformations allow divergent construction of valuable dihydro- or tetrahydrophenanthridin-6(5H)-ones through the generation of S- or P-centered radicals, subsequent radical addition, cyclization, and a hydrogen
A Multi-State, Allosterically-Regulated Molecular Receptor With Switchable Selectivity
作者:Jose Mendez-Arroyo、Joaquín Barroso-Flores、Alejo M. Lifschitz、Amy A. Sarjeant、Charlotte L. Stern、Chad A. Mirkin
DOI:10.1021/ja503506a
日期:2014.7.23
cationic guest molecule. Job plots and (1)H NMR spectroscopy titrations were used to study the formation of these inclusion complexes, the receptor binding modes, and the receptor binding affinities (Ka) in solution. Single crystal X-ray diffraction studies provided insight into the solid-state structures of the receptor when complexed with each guest molecule. The dipole moments and electrostatic potential
Synthesis of Functionalized Isoindolinones via Calcium Catalyzed Generation and Trapping of <i>N</i>-Acyliminium Ions
作者:Ashley J. Basson、Mark G. McLaughlin
DOI:10.1021/acs.joc.0c00482
日期:2020.4.17
Herein we report our full investigation into the calcium catalyzed generation and trapping of N-acyliminium ions from readily available 3-hydroxyisoindolinones. We have successfully employed a range of traditional nucleophiles including carbon, nitrogen, and sulfur containing reactive partners. The reaction is tolerant to a wide range of functionalities and provides high value scaffolds in good to