Efficient Synthesis of (R)-2-Chloro-1-(3-chlorophenyl)ethanol by Permeabilized Whole Cells of Candida ontarioensis
作者:Ye NI、Beihua ZHANG、Zhihao SUN
DOI:10.1016/s1872-2067(11)60363-x
日期:2012.4
Abstract ( R )-2-Chloro-1-(3-chlorophenyl)ethanol is a key pharmaceutical intermediate in the synthesis of 3 -adrenoceptor receptor ( 3 -AR) agonists. The asymmetric reduction of 2-chloro-1-(3-chlorophenyl)ethanone to ( R )-2-chloro-1-(3-chlorophenyl)ethanol catalyzed by resting cells of Candida ontarioensis was studied. At a substrate concentration of 10 g/L, the microbial cells showed excellent catalytic
摘要 ( R )-2-氯-1-(3-氯苯基)乙醇是合成3-肾上腺素受体(3-AR)激动剂的关键医药中间体。研究了安大略念珠菌静息细胞催化 2-氯-1-(3-氯苯基)乙酮不对称还原为 (R)-2-氯-1-(3-氯苯基)乙醇。在底物浓度为 10 g/L 时,微生物细胞在最佳反应条件下表现出优异的催化活性,产物 ee 为 99.9%,产率为 99.0%。十六烷基三甲基溴化铵预处理后,透化的安大略念珠菌细胞的活性提高了 2 倍以上,并且在显着缩短的 24 小时反应时间内可以在 99.9% 的 ee 和 97.5% 的产率下生产产物,底物浓度为 30克/升。