[EN] QUINOXALINE-CONTAINING COMPOUNDS AS HEPATITIS C VIRUS INHIBITORS<br/>[FR] COMPOSÉS CONTENANT DE LA QUINOXALINE EN TANT QU'INHIBITEURS DU VIRUS DE L'HÉPATITE C
申请人:ENANTA PHARM INC
公开号:WO2009064975A1
公开(公告)日:2009-05-22
The present invention discloses compounds of formula I and II or pharmaceutically acceptable salts, esters, or prodrugs thereof which inhibit serine protease activity, particularly the activity of hepatitis C virus (HCV) NS3-NS4A protease. Consequently, the compounds of the present invention interfere with the life cycle of the hepatitis C virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HCV infection. The invention also relates to methods of treating an HCV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
Boron fluoride promoted cleavage of acetals by organocopper reagents application to asymmetric synthesis
作者:J.F. Normant、A. Alexakis、A. Ghribi、P. Mangeney
DOI:10.1016/0040-4020(89)80078-x
日期:1989.1
BF3. Et2O, organocopper and cuprate reagents promote the substitution of one alkoxy group of an acetal. Under the same conditions, alkoxy tetrahydropyrans react selectively, by ring cleavage. Chiral cyclic acetals, having a C2 axis of symmetry are diastereoselectively cleaved. The method serves to synthesize chiral secondary alcohols, after the removal of the chiral auxiliary.
VITAMIN D RECEPTOR ACTIVATORS AND METHODS OF MAKING
申请人:Von Geldern Thomas W.
公开号:US20090131379A1
公开(公告)日:2009-05-21
The invention relates to compounds that are vitamin D receptor activators, compositions comprising such compounds, methods of using such compounds and compositions, processes for preparing such compounds, and intermediates obtained during such processes.
Process for preparing the antiviral agent [1S-(1alpha,3 alpha,4beta)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
申请人:——
公开号:US20040192912A1
公开(公告)日:2004-09-30
Processes are disclosed for preparing the antiviral agent entecavir. A resin adsorption process for the isolation and purification of entecavir is also disclosed. Various intermediates useful in the preparation of entecavir are also disclosed.
Process for preparing the antiviral agent [1S-(1alpha, 3alpha, 4beta)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one
申请人:Pendri R. Yadagiri
公开号:US20060106216A1
公开(公告)日:2006-05-18
Processes are disclosed for preparing the antiviral agent entecavir. A resin adsorption process for the isolation and purification of entecavir is also disclosed. Various intermediates useful in the preparation of entecavir are also disclosed.