[EN] OLIGONUCLEOTIDE COMPOSITIONS AND METHODS THEREOF<br/>[FR] COMPOSITIONS D'OLIGONUCLÉOTIDES ET PROCÉDÉS ASSOCIÉS
申请人:WAVE LIFE SCIENCES LTD
公开号:WO2021237223A1
公开(公告)日:2021-11-25
The present disclosure provides modified oligonucleotides and compositions and methods thereof. In some embodiments, provided technologies comprise modified sugars and/or modified internucleotidic linkages. In some embodiments, the present disclosure provides technologies for preparing modified oligonucleotides. In some embodiments, the present disclosure provides chirally controlled oligonucleotide compositions and methods for their preparation and uses.
developed through the ring-opening of epoxides with organic dithiophosphorus acids 1. Highly regio- and stereoselective products, β-hydroxyalkyl dithiophosphates, which were transformed to the corresponding synthetically valuable β-hydroxymercaptans by further reduction, were obtained under mild reaction conditions without any catalyst or promoter. Highly enantioselective ring-openingreaction of cyclohexene
Chiral Phosphoric Acid Catalyzed Enantioselective Desymmetrization of <i>meso</i>-Epoxides by Thiols
作者:Zhaobin Wang、Wai Kit Law、Jianwei Sun
DOI:10.1021/ol402797v
日期:2013.12.6
The first chiral Brønsted acid catalyzed asymmetric nucleophilic ring-openingreaction of meso-epoxides is described. In the presence of TRIP, a range of meso-epoxides could undergo smooth ring-openingreactions by aryl thiols with good efficiency and enantioselectivity.
The synthesis of (+)- and (-)-trans-1-mercaptocyclohexan-2-ol is described. Ring opening of cyclohexene oxide with (-)-4-methoxybenzylnopan-3(R)-thiol 1a followed by oxidation gives two readily separable diastereomeric sulfoxides. These sulfoxides display very different thermal stability but both undergo regio-specific syn-elimination to give cyclohexan-1-ol-2-sulfenic acid that can be reacted in situ with 3,5-dimethylthiophenol to give a mixed disulfide. Reduction of these disulfides with lithium aluminium hydride gives the title compounds in enantiomerically pure form. (C) 1999 Elsevier Science Ltd. All rights reserved.
Verfahren zur Herstellung von Polyalkylmethacrylat-Macromonomeren