A new enzymatic approach to (R)-Tamsulosin hydrochloride
摘要:
An enantio selective baker's yeast mediated approach to the pharmacologically active (R)-enantiomer of Tamsulosin hydrochloride is reported. (c) 2007 Elsevier Ltd. All rights reserved.
An enantio selective baker's yeast mediated approach to the pharmacologically active (R)-enantiomer of Tamsulosin hydrochloride is reported. (c) 2007 Elsevier Ltd. All rights reserved.
Stereoselective Synthesis of Optically Active α-Hydroxy Ketones and <i>a</i><i>nti</i>-1,2-Diols via Asymmetric Transfer Hydrogenation of Unsymmetrically Substituted 1,2-Diketones
作者:Takashi Koike、Kunihiko Murata、Takao Ikariya
DOI:10.1021/ol0002572
日期:2000.11.1
[reaction: see text] A well-defined chiral Ru catalyst RuCl(N-(p-toluenesulfonyl)-1, 2-diphenylethylenediamine)(eta(6)-arene) effectively promotes asymmetric transfer hydrogenation of 1-aryl-1,2-propanedione with HCOOH/N(C(2)H(5))(3), leading preferentially to opticallyactive 1-aryl-2-hydroxy-1-propanone with up to 99% ee and 89% yield at 10 degrees C. The reaction at 40 degrees C gives anti-1-aryl-1