Visible-Light-Mediated Synthesis of Amidyl Radicals: Transition-Metal-Free Hydroamination and <i>N</i>-Arylation Reactions
作者:Jacob Davies、Thomas D. Svejstrup、Daniel Fernandez Reina、Nadeem S. Sheikh、Daniele Leonori
DOI:10.1021/jacs.6b04920
日期:2016.7.6
The development of photoredox reactions of aryloxy-amides for the generation of amidylradicals and their use in hydroamination-cyclization and N-arylation reactions is reported. Owing to the ease of single-electron-transfer reduction of the aryloxy-amides, the organic dye eosin Y was used as the photoredox catalyst, which results in fully transition-metal-free processes. These transformations exhibit
报道了芳氧基-酰胺光氧化还原反应产生酰胺基自由基的发展及其在加氢胺化-环化和 N-芳基化反应中的应用。由于芳氧基酰胺易于单电子转移还原,有机染料伊红 Y 被用作光氧化还原催化剂,这导致完全无过渡金属的过程。这些转变表现出广泛的范围,可以容忍几个重要的功能,并已用于复杂和高价值含氮分子的后期修饰。
Discovery of Chemoselective and Biocompatible Reactions Using a High-Throughput Immunoassay Screening
An immunoassay‐based method was used to screen numerous combinations of dipoles and dipolarophiles for their ability to undergo chemoselective and biocompatible [3+2] cycloaddition reactions. The approach fulfills most of the requirements of the click concept and led to the discovery of a copper‐catalyzed reaction that generates pyrazoles from sydnone and alkyne reagents.
Compound having detrusor muscle-contracting activity and urethral sphincter muscle-relaxing activity
申请人:Ono Pharmaceutical Co., Ltd.
公开号:US08686160B2
公开(公告)日:2014-04-01
Since a compound represented by formula (I) wherein all of the symbols are the same as defined in the specification, a salt thereof, a solvate thereof, a prodrug thereof, a mixture with a diastereomer thereof in an arbitrary ratio, or a cyclodextrin clathrate thereof have a contracting activity of bladder detrusor and a relaxing activity of urethral sphincter, they can ameliorate bladder contraction dysfunction and/or urethral relaxation dysfunction, and for example, are effective for underactive bladder. Additionally, the compound of the present invention has little risk of side effects on the urinary system, the circulatory system and the digestive system, and exhibits excellent pharmacokinetics, such as oral absorbability etc. Therefore, the compound of the present invention is useful as a superior agent for preventing, treating and/or ameliorating underactive bladder