Benzothiazole derivatives with activity as adenosine receptor ligands
申请人:——
公开号:US20020045615A1
公开(公告)日:2002-04-18
The present invention relates to substituted benzothiazole derivitives and to their pharmaceutically acceptable salts useful for the treatment of diseases related to the adenosine receptor.
Access to Amide from Aldimine via Aerobic Oxidative Carbene Catalysis and LiCl as Cooperative Lewis Acid
作者:Guanjie Wang、Zhenqian Fu、Wei Huang
DOI:10.1021/acs.orglett.7b01195
日期:2017.7.7
Herein, an efficient route to amides from aldimines via aza-Breslow intermediates through aerobic oxidative carbenecatalysis with LiCl as a cooperative Lewis acid is described. Many of the obtained N-heteroarylamides feature biological activity. Ambient air was used as the sole oxidant and source of oxygen in this catalytically oxidative amidation. This method allows for a broad substrate scope and
Imidazolium-supported benzotriazole: an efficient and recoverable activating reagent for amide, ester and thioester bond formation in water
作者:S. M. Abdul Shakoor、Sunita Choudhary、Kiran Bajaj、Manoj Kumar Muthyala、Anil Kumar、Rajeev Sakhuja
DOI:10.1039/c5ra18749d
日期:——
An efficient and recyclable imidazolium-supported benzotriazole reagent (Im-CH2-BtH) as a novel synthetic auxiliary has been synthesized and its utility as a carboxyl group activating reagent via the formation of stable imidazolium-supported acyl benzotriazoles was explored for the synthesis of amides, esters and thioesters in water under microwave conditions. The reagent was reused five times without
Synthesis and Antimicrobial Activities of Some Heterocyclic Systems from 2-Furoyl Isothiocyanate
作者:Magdy M. Hemdan
DOI:10.1080/10426500902893209
日期:2010.2.23
2-Furoyl isothiocyanate (1) is used as a building block in synthesizing different heterocyclicsystems of anticipated biological activities. Thus, isothiocyanate 1 was reacted with different nucleophilic reagents to produce five- and six-membered heterocyclicsystems such as 1,2,4-triazoline, thiadiazolidine, quinazoline, benzothiazole, benzoxazole, benzimidazole, thiazolidine, and imidazolidine. The