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.
1- and 2-Azetines via Visible Light-Mediated [2 + 2]-Cycloadditions of Alkynes and Oximes
作者:Emily R. Wearing、Dominique E. Blackmun、Marc R. Becker、Corinna S. Schindler
DOI:10.1021/jacs.1c07523
日期:2021.10.6
accessible upon intermolecular [2 + 2]-cycloaddition via triplet energy transfer from a commercially available iridium photocatalyst, the selective formation of 1-azetines proceeds upon a second, consecutive, energy transfer process. Mechanistic studies are consistent with a stepwise reactionmechanism via N–O bond homolysis following the second energy transfer event to result in the formation of 1-azetine products
Synthesis of azetidines via visible-light-mediated intermolecular [2+2] photocycloadditions
作者:Marc R. Becker、Emily R. Wearing、Corinna S. Schindler
DOI:10.1038/s41557-020-0541-1
日期:2020.10
Intermolecular [2+2] photocycloadditions represent a powerful method for the synthesis of highly strained, four-membered rings. Although this approach is commonly employed for the synthesis of oxetanes and cyclobutanes, the synthesis of azetidines via intermolecular aza Paternò–Büchi reactions remains highly underdeveloped. Here we report a visible-light-mediated intermolecular aza Paternò–Büchi reaction
Access to Azetidines via Gold Mediated Energy Transfer Photocatalysis
作者:Sébastien G. Guillet、Aleksei A. Logvinov、Vladislav A. Voloshkin、Ekaterina A. Martynova、Steven P. Nolan
DOI:10.1021/acs.orglett.3c00136
日期:2023.3.10
generate four-membered rings is experiencing an unprecedented level of activity. Here, we report an operationally simple method toward azetidines from 2-isoxasoline-3-carboxylates and alkenes, using [Au(cbz)(NHC)] complexes as photocatalysts. The procedure enables the reaction for a wide range of substrates. Mechanistic studies confirm the energy transfer pathway. This contribution adds to the earlier
A series of 2-alkoxyimino-N-(2-isoxazolin-3-ylmethyl)acetamides and related compounds were synthesized and their antiviral activities against human influenza A virus were assessed. Studies of the structure-activity relationships revealed the strongest antiviral activity when position-5 of the isoxazoline ring was substituted with a tert-butyl group. When the alkoxyimino moiety was substituted with a methyl, ethyl, isopropyl or allyl group, good antiviral activity was obtained. Among the geometrical isomers at the oxime moiety, the E-isomers were more active than the Z-isomers. Among the compounds examined, (E)-2-allyloxyimino-2-cyano-N-(5-tert-butyl-2-iosaxazolin-3-ylmethyl)acetamide (1j) was the most active inhibitor with an EC50 of 3 mug/mL in vitro. (C) 2001 Elsevier Science Ltd. All rights reserved.