Enantioselective reduction of ketones with borane catalyzed by cyclic β- amino alcohols prepared from proline
摘要:
New catalysts have been prepared from (S)- and (R)- proline and the asymmetric borane reduction of prochiral ketones using these catalysts has been studied. The secondary alcohols were obtained in 76-95% yield with 57-96% enantiomeric excesses. Copyright (C) 1996 Elsevier Science Ltd
Novel Enantioselective Synthesis of Both Enantiomers of Furan-2-yl Amines and Amino Acids
作者:Ayhan S. Demir、Özge Sesenoglu、Dinçer Ülkü、Cengiz Arıcı
DOI:10.1002/hlca.200390022
日期:2003.1
A new enantioselectivesynthesis of furan-2-ylamines and aminoacids is described, in which the key step is the oxazaborolidine-catalyzed enantioselective reduction of O-benzyl (E)- and (Z)-furan-2-yl ketone oximes to the corresponding chiral amines. The chirality of the furan-2-ylamines is fully controlled by the appropriate choice of the geometrical isomer of the O-benzyl oxime. Oxidation of the
[EN] TECHNOLOGIES USEFUL FOR OLIGONUCLEOTIDE PREPARATION<br/>[FR] TECHNOLOGIES UTILES POUR LA PRÉPARATION D'OLIGONUCLÉOTIDES
申请人:WAVE LIFE SCIENCES LTD
公开号:WO2020191252A1
公开(公告)日:2020-09-24
Among other things, the present disclosure provides technologies for oligonucleotide preparation, particularly chirally controlled oligonucleotide preparation, which technologies provide greatly improved crude purity and yield, and significantly reduce manufacturing costs.
Among other things, the present disclosure provides technologies for oligonucleotide preparation, particularly chirally controlled oligonucleotide preparation, which technologies provide greatly improved crude purity and yield, and significantly reduce manufacturing costs.
[EN] TECHNOLOGIES FOR OLIGONUCLEOTIDE PREPARATION<br/>[FR] TECHNOLOGIES DE PRÉPARATION D'OLIGONUCLÉOTIDES
申请人:WAVE LIFE SCIENCES LTD
公开号:WO2019055951A1
公开(公告)日:2019-03-21
Among other things, the present disclosure provides technologies for oligonucleotide preparation, particularly chirally controlled oligonucleotide preparation, which technologies provide greatly improved crude purity and yield, and significantly reduce manufacturing costs.