A novel method for the metal-free synthesis of amides from thioamides based on visible-light photoredox catalysis and in an air atmosphere is reported. Natural pigment chlorophyll is used as a photosensitizer to generate singlet molecular oxygen 1O2, which is involved in the aerobic desulfurization of thioamides. The protocol provides amides in good yields at room temperature under mild conditions
报道了一种基于可见光光氧化还原催化和空气气氛的硫代酰胺无金属合成酰胺的新方法。天然色素叶绿素作为光敏剂产生单线态分子氧1 O 2,参与硫代酰胺的好氧脱硫。该协议在温和条件下在室温下以良好的收率提供酰胺。在实验结果的基础上,提出了一种合理的光氧化还原机制。
Structure‐Activity Studies Reveal Scope for Optimisation of Ebselen‐Type Inhibition of SARS‐CoV‐2 Main Protease
作者:Siegfried T. D. Thun‐Hohenstein、Timothy F. Suits、Tika R. Malla、Anthony Tumber、Lennart Brewitz、Hani Choudhry、Eidarus Salah、Christopher J. Schofield
DOI:10.1002/cmdc.202100582
日期:2022.2.16
AbstractThe reactive organoselenium compound ebselen is being investigated for treatment of coronavirus disease 2019 (COVID‐19) and other diseases. We report structure‐activity studies on sulfur analogues of ebselen with the Severe Acute Respiratory Syndrome coronavirus 2 (SARS‐CoV‐2) main protease (Mpro), employing turnover and protein‐observed mass spectrometry‐based assays. The results reveal scope for optimisation of ebselen/ebselen derivative‐ mediated inhibition of Mpro, particularly with respect to improved selectivity.
ANTI-VIRAL COMPOUNDS
申请人:Krueger Allan C.
公开号:US20150232455A1
公开(公告)日:2015-08-20
The present invention relates to anti-HCV compounds, compositions comprising the same and methods of using the same to treat HCV infection.