The combination of the catalytic power of photocatalysis and biocatalysis has greatly boosted the development of novel synthetic strategies due to its functional diversity and stereoselective specificity. Herein, we describe a one-potcascadeprocess that combined photo-oxidative fluoridation and bio-reduction to access enantiocomplementary vicinal fluoro alcohols with up to 87% isolated yield and 99%
由于其功能多样性和立体选择性,光催化和生物催化的催化能力的结合极大地促进了新型合成策略的发展。在这里,我们描述了一种单锅级联工艺,该工艺将光氧化氟化和生物还原相结合,以获得高达 87% 的分离产率和 99% ee 的对映互补邻氟醇。
Synthesis of Enantiopure Fluorohydrins Using Alcohol Dehydrogenases at High Substrate Concentrations
作者:Wioleta Borzęcka、Iván Lavandera、Vicente Gotor
DOI:10.1021/jo400962c
日期:2013.7.19
The use of purified and overexpressed alcohol dehydrogenases to synthesize enantiopure fluorinated alcohols is shown. When the bioreductions were performed with ADH-A from Rhodococcus ruber overexpressed in E. coli, no external cofactor was necessary to obtain the enantiopure (R)-derivatives. Employing Lactobacillus brevis ADH, it was possible to achieve the synthesis of enantiopure (S)-fluorohydrins at a 0.5 M substrate concentration. Furthermore, due to the activated character of these substrates, a huge excess of the hydrogen donor was not necessary.
TRIAZOLE CARBAMATE PYRIDYL SULFONAMIDES AS LPA RECEPTOR ANTAGONISTS AND USES THEREOF
申请人:Gilead Sciences, Inc.
公开号:US20210171500A1
公开(公告)日:2021-06-10
The present disclosure relates generally to compounds that bind to Lysophosphatidic Acid Receptor 1 (LPAR1) and act as antagonists of LPAR1. The disclosure further relates to the use of the compounds for the preparation of a medicament for the treatment of diseases and/or conditions through binding of LPAR1, including fibrosis and liver diseases such as non-alcoholic steatohepatitis (NASH).
Double Enzyme-Catalyzed One-Pot Synthesis of Enantiocomplementary Vicinal Fluoro Alcohols
double-enzyme-catalyzed strategy for the synthesis of enantiocomplementary vicinal fluoro alcohols through a one-pot, three-step process including lipase-catalyzed hydrolysis, spontaneous decarboxylative fluorination, and subsequent ketoreductase-catalyzed reduction was developed. With this approach, β-ketonic esters were converted to the corresponding vicinal fluoro alcohols with high isolated yields