Palladium-Catalyzed C−H Arylation of 2,5-Substituted Pyrroles
摘要:
The palladium-catalyzed direct arylation of 2,5-substituted pyrrole derivatives with diaryliodonium salts to generate tri-, tetra-, and penta-substituted pyrrole products is described. The scope and limitations of these transformations are also reported.
Accessing Polysubstituted NH Pyrroles from Nitroalkenes via [4+2]‐Cycloaddition/Reductive Ring Contraction Strategy
作者:Evgeny V. Pospelov、Alexander V. Zhirov、Baglan Kamidolla、Alexey Yu. Sukhorukov
DOI:10.1002/ejoc.202400627
日期:2024.8.12
of nitroalkenes with enol ethers followed by reductive ring contraction of the resulting cyclic nitronates provides a new access to polysubstituted NH pyrroles. Unlike conventional synthetic routes (Barton-Zard, Knorr, Hantzsch, Van Leusen pyrrole syntheses), this strategy affords NH pyrroles that do not necessarily contain a EWG group in the ring.
COMPOSITIONS AND METHODS FOR ENHANCING PROTEASOME ACTIVITY
申请人:President and Fellows of Harvard College
公开号:EP2528911A2
公开(公告)日:2012-12-05
[EN] COMPOSITIONS AND METHODS FOR ENHANCING PROTEASOME ACTIVITY<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR AMÉLIORER L'ACTIVITÉ DES PROTÉASOMES
申请人:HARVARD COLLEGE
公开号:WO2011094545A2
公开(公告)日:2011-08-04
Proteinopathies result from the proteasome not acting efficiently enough to eliminate harmful proteins and prevent the formation of the pathogenic aggregates. As described herein, inhibition of proteasome-associated deubiquitinase Usp 14 results in increased proteasome efficiency. The present invention therefore provides novel compositions and methods for inhibition of Uspl4, enhancement of proteasome activity and treatment of proteinopathies.