[EN] N-CONTAINING CHROMEN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION<br/>[FR] DÉRIVÉS DE CHROMEN-4-ONE CONTENANT N POUR LE TRAITEMENT ET LA PROPHYLAXIE D'UNE INFECTION PAR LE VIRUS DE L'HÉPATITE B
申请人:HOFFMANN LA ROCHE
公开号:WO2020120528A1
公开(公告)日:2020-06-18
The present invention provides the compounds having the general formula: (I) wherein R1 to R8, and X are as described herein, compositions including the compounds and methods of using the compounds.
The effect of benzyl amine on the efficiency of the base-catalyzed transamination of α-keto esters
作者:Fazhen Xue、Xiao Xiao、Haining Wang、Yian Shi
DOI:10.1016/j.tet.2012.06.023
日期:2012.8
This paper describes the effect of benzyl amine on the base-catalyzed transamination of alpha-keto esters. Among various benzyl amines examined, o-HOC6H4CH2NH2 was found to be highly effective for the reaction, affording a wide variety of alpha-amino esters in good yields. The o-OH group of the benzyl amine facilitates the transamination process likely via H-bond. Moderate enantiomeric excess was obtained for alpha-amino ester when a quinine derived catalyst was used. (C) 2012 Elsevier Ltd. All rights reserved.
N-CONTAINING CHROMEN-4-ONE DERIVATIVES FOR THE TREATMENT AND PROPHYLAXIS OF HEPATITIS B VIRUS INFECTION