描述了制备对映体纯的抗真菌chirons的高产生物过程。这些是合成新的三唑药物衍生物的关键组成部分,已知这些新的三唑药物衍生物显示出对诸如氟康唑耐药的口食管念珠菌病等感染具有有价值的活性。使用市售的重组黑曲霉在最佳实验条件下使用环氧化物水解酶,在室温下使用两相反应器在水中进行1-氯-2-(2,4-二氟苯基)-2,3-环氧丙烷的水解动力学拆分。该方法学使得该方法可以在高至500 g / L(即2.5 M)的底物浓度下运行,并提供了(几乎未对映纯)形式和定量收率的(未反应的)环氧化物和相应的邻二醇。
Enzymatic transformations. Part 53: Epoxide hydrolase-catalysed resolution of key synthons for azole antifungal agents
作者:Nicolas Monfort、Alain Archelas、Roland Furstoss
DOI:10.1016/s0957-4166(02)00681-x
日期:2002.11
The biocatalysed hydrolytic kinetic resolution (BHKR) of a key building block allowing the synthesis of an enantiopure azole antifungal compound is described. This is based on the epoxide hydrolase-catalysed resolution of a racemic epoxide. Using epoxide hydrolase from Aspergillus niger, both the unreacted epoxide and the formed diol were obtained with excellent yield and very high ee (>98%). Interestingly, both products can be Used for the synthesis of the target molecule, thus-allowing the theoretical 50% yield limitation linked to such resolution processes to be overcome. (C) 2002 Elsevier Science Ltd. All rights reserved.
Enantioselective Oxetane Ring Opening with Chloride: Unusual Use of Wet Molecular Sieves for the Controlled Release of HCl
作者:Wen Yang、Zhaobin Wang、Jianwei Sun
DOI:10.1002/anie.201601844
日期:2016.6.6
An unprecedented enantioselectiveoxetaneopening with chloride provides access to a range of highly functionalized three‐carbon building blocks. The excellent enantiocontrol is enabled not only by a new catalyst, but also by the unusualuse of wetmolecularsieves for the controlledrelease of HCl.
Enzymatic transformations. Part 55: Highly productive epoxide hydrolase catalysed resolution of an azole antifungal key synthon
作者:Nicolas Monfort、Alain Archelas、Roland Furstoss
DOI:10.1016/j.tet.2003.10.119
日期:2004.1
bioprocess for the preparation of enantiopure azole antifungal chirons is described. These are key building blocks for the synthesis of new triazole drug derivatives known to display valuable activity against such infections as for instance fluconazole-resistant oro-oesophageal candidiasis. Using commercially available recombinant Aspergillus niger epoxidehydrolase under optimised experimental conditions
描述了制备对映体纯的抗真菌chirons的高产生物过程。这些是合成新的三唑药物衍生物的关键组成部分,已知这些新的三唑药物衍生物显示出对诸如氟康唑耐药的口食管念珠菌病等感染具有有价值的活性。使用市售的重组黑曲霉在最佳实验条件下使用环氧化物水解酶,在室温下使用两相反应器在水中进行1-氯-2-(2,4-二氟苯基)-2,3-环氧丙烷的水解动力学拆分。该方法学使得该方法可以在高至500 g / L(即2.5 M)的底物浓度下运行,并提供了(几乎未对映纯)形式和定量收率的(未反应的)环氧化物和相应的邻二醇。