The present invention relates to compounds that are Nrf2 activators. The compounds have the structural formula I defined herein. The present invention also relates to processes for the preparation of these compounds, to pharmaceutical compositions comprising them, and to their use in the treatment of diseases or disorders associated with Nrf2 activation.
Rhodium(II)‐Catalyzed Formal [4+1]‐Cycloaddition of Pyridotriazoles and Propargyl Alcohols: Synthesis of 2,5‐Dihydrofurans
作者:Xinxin Lv、Haijian Yang、Taoda Shi、Dong Xing、Xinfang Xu、Wenhao Hu
DOI:10.1002/adsc.201801497
日期:2019.3.15
A rhodium‐catalyzed formal [4+1]‐cycloaddition of pyridotriazoles and aryl propargylalcohols is reported, providing an effective access to 2‐pyridyl‐substituted 2,5‐dihydrofuran derivatives in moderate to high yields. Mechanistically, the proposed oxonium ylide intermediate in this catalytic alkyne carbocyclization transformation is verified by an interception experiment for the first time.
allowing a Csp 3-N bond formation through coupling of pyridotriazoles and weakly nucleophilicanilines has been developed. This sustainable reaction shows high tolerance towards functional groups (ketones, free alcohols) leading to 2-picolylamines derivatives. The key to our success is the use of a catalytic amount of TBAB and water as a co-solvent leading to the formation of pyridyl-alkylamines derivatives
Dearomative Migratory Rearrangement of 2-Oxypyridines Enabled by α-Imino Rhodium Carbene
作者:Guangyang Xu、Ying Shao、Shengbiao Tang、Qun Chen、Jiangtao Sun
DOI:10.1021/acs.orglett.0c03533
日期:2020.12.4
migratory rearrangement reactions of 2-oxypyridines with N-sulfonyl-1,2,3-triazoles have been developed under rhodium catalysis, providing a reliable and efficient protocol for accessing N-substituted 2-pyridones. These two distinct rearrangements feature the controllable 1,4-migration of a carbonate group from O-to-C as well as the O-to-N 1,6-migration of an acyl group via α-imino rhodium carbene transfer
Co-Catalyzed Transannulation of Pyridotriazoles with Isothiocyanates and Xanthate Esters
作者:Ziyan Zhang、Vladimir Gevorgyan
DOI:10.1021/acs.orglett.0c03099
日期:2020.11.6
developed. This method features conversion of pyridotriazoles into two N-fused heterocyclic aromatic systems—imino-thiazolopyridines and oxo-thiazolopyridine derivatives—via one-step Co(II)-catalyzed transannulation reaction proceeding via a radical mechanism. The synthetic usefulness of the developed method was illustrated in the synthesis of amino acid derivatives and further transformations of obtained