Selenolesterase enzyme activity of carbonic anhydrases
作者:Andrea Angeli、Fabrizio Carta、Selene Donnini、Antonella Capperucci、Marta Ferraroni、Damiano Tanini、Claudiu T. Supuran
DOI:10.1039/d0cc00995d
日期:——
Carbonicanhydrases (CAs, E.C. 4.2.1.1) are metalloenzymes expressed on a variety of cell types. Their overexpression leads to serious pathologies, including cancer. The discovery of a series of selenolesters with high structural diversity as novel CA inhibitors is reported here. These compounds show remarkable in vitro inhibition against a panel of human CA isoforms such as hCA I, II, IX and XII.
Herein, we report an eco-friendly synthesis of selenoesters from acyl chlorides catalyzed by recyclable CuO nanopowder in ionic liquid as a recyclable solvent in good to excellent yields. This protocol shows high efficiency in catalyzing this transformation in a greener fashion than previous protocols due to the non-residual methodological design.
Indium-mediated cleavage of diphenyl diselenide and diphenyl disulfide: efficient one-pot synthesis of unsymmetrical diorganyl selenides, sulfides, and selenoesters
作者:Wanida Munbunjong、Eun Hwa Lee、Poonlarp Ngernmaneerat、Sung Jun Kim、Gurpinder Singh、Warinthorn Chavasiri、Doo Ok Jang
DOI:10.1016/j.tet.2009.01.072
日期:2009.3
convenient and efficient method was developed for the synthesis of alkyl phenyl selenides, sulfides, and selenoesters in one-pot reaction by using indium metal. The reaction showed the selectivity for tert-alkyl, benzylic, and allylic halides over primary and secondary alkyl halides. For the reaction of primary and secondary alkyl iodides and bromides, the yields of selenides were improved by the addition
Efficient synthesis of selenol esters from acid chlorides mediated by indium metal
作者:Graciane Marin、Antonio L. Braga、Anderson S. Rosa、Fábio Z. Galetto、Robert A. Burrow、Hugo Gallardo、Marcio W. Paixão
DOI:10.1016/j.tet.2009.03.069
日期:2009.6
This article describes an efficient and easy one-pot route for the synthesis of a wide range of selenol estersfrom acyl chloride with diselenides in the presence of indium metal. A variety of functional groups can be tolerated within the diorgano diselenide and the acyl chloride coupling partner.
It was found that palladium complex catalyzed three-component coupling of phenyl tributylstannyl selenide with aryl iodides and carbonmonoxide to afford the corresponding selenol esters in moderate to good yields.