SUBSTITUTED DIHYDROPYRIMIDINONES AND THEIR USE AS INHIBITORS OF NEUTROPHIL ELASTASE ACTIVITY
申请人:Boehringer Ingelheim International GmbH
公开号:US20160031825A1
公开(公告)日:2016-02-04
Substituted dihydropyrimidinones of formula 1
which are inhibitors of neutrophil elastase activity and which are useful as medicaments for the treatment of, inter alia, COPD. Exemplary is
Arylboration of Enecarbamates for the Synthesis of Borylated Saturated N‐Heterocycles
作者:Grace L. Trammel、Prashansa B. Kannangara、Dmytro Vasko、Oleksandr Datsenko、Pavel Mykhailiuk、M. Kevin Brown
DOI:10.1002/anie.202212117
日期:2022.11.14
SaturatedN-heterocycles are important motifs found in many biologically active molecules. In this work, difunctionalization of 4–7-membered enecarbamates is achieved using both Cu/Pd and Ni-catalysed arylboration to deliver synthetically versatile borylated saturatedN-heterocycles in good selectivity. The products are synthetically useful, as demonstrated by manipulations of the boronic ester to
饱和N-杂环是在许多生物活性分子中发现的重要基序。在这项工作中,使用 Cu/Pd 和 Ni 催化的芳基硼化反应实现了 4-7 元烯氨基甲酸酯的双官能化,以良好的选择性提供合成通用的硼化饱和 N-杂环。该产品在合成上是有用的,如通过操作硼酸酯以获得生物活性化合物所证明的那样。
An Enantioselective Approach to
<scp>Heteroatom‐Containing</scp>
Bicyclic Derivatives via
<scp>Inverse‐Electron‐Demand</scp>
Diels−Alder Reactions
作者:Jun‐Xiong He、Xu‐Ge Si、Qi‐Tao Lu、Qian‐Wei Zhang、Quan Cai
DOI:10.1002/cjoc.202200441
日期:2023.1
important pharmacophores and prevalent in bioactive natural products and drug molecules. Herein, we report a unified approach for the divergent synthesis of chiral heteroatom-containing bicyclic derivatives by lanthanide (III)-catalyzed asymmetric inverse-electron-demand Diels–Alder reactions of 2-pyrones. These reactions occur with various readily available dihydropyrroles and dihydrofurans as dienophiles
A Convenient Procedure for the Conversion Of N-Boc Protected Pyrrolidinone Derivatives Into Their Corresponding Enecarbamates
作者:Cossy、Cases、Gomez Pardo
DOI:10.1080/00397919708004150
日期:1997.8
When N-Boc protected pyrrolidinone derivatives are treated by Dibal-H and then by quinolinium camphorsulfonate, they are converted into their corresponding enecarbamate.