[EN] FLUOROPHENYL BETA-HYDROXYETHYLAMINES AND THEIR USE IN THE TREATMENT OF HYPERGLYCAEMIA<br/>[FR] FLUOROPHÉNYLE BÊTA-HYDROXYÉTHYLAMINES ET LEUR UTILISATION DANS LE TRAITEMENT DE L'HYPERGLYCÉMIE
申请人:ATROGI AB
公开号:WO2019053426A1
公开(公告)日:2019-03-21
There is herein provided a compound of formula (I).
这里提供了一个化合物的化学式(I)。
H-β-zeolite catalyzed synthesis of β-bromostyrenes from styrene bromohydrins
Synthesis of β-bromostyrenes from styrenebromohydrins using H-β-zeolite as catalyst under moderate conditions is reported. The catalyst could be regenerated and reused up to three consecutive cycles.
The present invention relates to a process for producing optically active halomethyl phenyl carbinols of the formula (1), comprising reducing halomethyl phenyl ketones of the formula (2) using an asymmetric reducing agent obtained from boranes and optically active α-phenyl-substituted-β-amino alcohols of the formula (3) or optically active α-non-substituted-β-amino alcohols of the formula (4).
The present invention further relates to a process for producing optically active carbinols, comprising reacting with an unsymmetric ketone, an asymmetric reducing agent obtained from optically active β-amino alcohols of the formula (5), a metal boron hydride and Lewis acid or lower dialkyl sulfuric acid.
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.