Oxathiaborolium-Catalyzed Enantioselective [4 + 2] Cycloaddition and Its Application in Lewis Acid Coordinated and Chiral Lewis Acid Catalyzed [4 + 2] Cycloaddition
作者:Ramalingam Boobalan、Rong-Jie Chein
DOI:10.1021/acs.orglett.1c02345
日期:2021.9.3
catalysts for [4 + 2] cycloaddition. Oxathiaborolium pentachlorostannate (5–10 mol %) successfully catalyzed cycloaddition of various dienes and dienophiles to afford cycloadducts with excellent enantioselectivity (20 examples, up to 99% ee). This super Lewis acid also exhibited good enantioselectivity for the first Lewis acid coordinated and chiral Lewis acid catalyzed [4 + 2] cycloaddition to α,β-unsaturated
Bicyclic sulfonamide compounds as sodium channel inhibitors
申请人:AMGEN INC.
公开号:US09212182B2
公开(公告)日:2015-12-15
The present invention provides compounds of Formula I,
and pharmaceutically acceptable salts thereof, that are inhibitors of voltage-gated sodium channels, in particular Nav1.7. The compounds are useful for the treatment of diseases associated with the activity of sodium channels such as pain disorders and itch. Also provided are pharmaceutical compositions containing compounds of the present invention.
BICYCLIC SULFONAMIDE COMPOUNDS AS SODIUM CHANNEL INHIBITORS
申请人:AMGEN INC.
公开号:US20140371201A1
公开(公告)日:2014-12-18
The present invention provides compounds of Formula I,
and pharmaceutically acceptable salts thereof, that are inhibitors of voltage-gated sodium channels, in particular Nav1.7. The compounds are useful for the treatment of diseases associated with the activity of sodium channels such as pain disorders and itch. Also provided are pharmaceutical compositions containing compounds of the present invention.