UREIDE DERIVATIVE AND PHARMACEUTICAL APPLICATION THEREOF
申请人:Sugawara Yuji
公开号:US20100234395A1
公开(公告)日:2010-09-16
Discloses is a pharmaceutical agent comprising an ureide derivative represented by the formula: or a pharmaceutically acceptable salt thereof as an active ingredient. The ureide derivative or the pharmaceutically acceptable salt thereof is useful for the relief of a pain or the treatment or prevention of neurogenic pain.
Enantioselective Synthesis of Nitrogen–Nitrogen Biaryl Atropisomers via Copper-Catalyzed Friedel–Crafts Alkylation Reaction
作者:Xiao-Mei Wang、Peng Zhang、Qi Xu、Chang-Qiu Guo、De-Bing Zhang、Chuan-Jun Lu、Ren-Rong Liu
DOI:10.1021/jacs.1c07741
日期:2021.9.22
bioactive compounds. However, the atropisomerism arising from a restricted rotation around an N–N bond is largely overlooked. Here, we describe a method to access the first enantioselective synthesis of N–N biaryl atropisomers via a Cu-bisoxazoline-catalyzed Friedel–Crafts alkylation reaction. A wide range of axially chiral N–N bisazaheterocycle compounds were efficiently prepared in high yields with