[EN] PROCESS FOR THE PREPARATION OF (3R, 3AS, 6AR)-HEXAHYDROFURO [2, 3- B] FURAN-3-OL<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE (3R,3AS,6AR)-HEXAHYDROFURO[2,3-B]FURAN-3-OL
申请人:MATRIX LAB LTD
公开号:WO2012070057A1
公开(公告)日:2012-05-31
The present invention relates to a novel process for the preparation of (3R, 3aS, 6aR)- hexahydrofuro [2, 3-b] furan-3-ol of formula I by reacting a compound of formula VII with the compound of formula R2-OH in the presence of haloginating agent to obtain a compound of formula VI and treating a compound of formula VI with dehaloginating agent to obtain a compound of formula V by reducing a compound of formula V, followed by cylization to obtain compound of formula IV and separating the enantiomer and diastereomers from compound of formula IV to yield a compound of formula I. Compound of formula I is useful as an intermediate in the preparation of protease inhibitors, in particular broad spectrum HIV protease inhibitors, the present invention also relates to process for the preparation of Darunavir from (3R, 3aS, 6aR)-hexahydrofuro [2, 3-b] furan-3-ol.
METHODS AND INTERMEDIATES USEFUL IN THE SYNTHESIS OF HEXAHYDROFURO [2,3-B]FURAN-3-OL
申请人:Chen Weiping
公开号:US20100168422A1
公开(公告)日:2010-07-01
Provided herein are compounds and methods useful for preparing hexahydrofuro[2,3-b]furan-3-ol. Hexahydrofuro[2,3-b]furan-3-ol can be efficiently synthesized in four steps from readily available starting materials.
[EN] METHODS AND INTERMEDIATES USEFUL IN THE SYNTHESIS OF HEXAHYDROFURO[2,3-B]FURAN-3-OL<br/>[FR] PROCÉDÉS ET INTERMÉDIAIRES UTILES DANS LA SYNTHÈSE D'HEXAHYDROFURO[2,3-B]FURAN-3-OL
申请人:OXYRANE UK LTD
公开号:WO2010075887A1
公开(公告)日:2010-07-08
Provided herein are compounds and methods useful for preparing hexahydrofuro[2,3-b]furan-3-ol. Hexahydrofuro[2,3-b]furan-3-ol can be efficiently synthesized in four steps from readily available starting materials.
Provided herein are boron-containing compounds, pharmaceutical compositions comprising such compounds, and methods of using such compounds to treat diseases or disorders.
本文提供了含硼化合物、包含此类化合物的药物组合物以及使用此类化合物治疗疾病或障碍的方法。
Darunavir Polymorph and Process for Preparation Thereof
申请人:Phull Manjinder Singh
公开号:US20130029945A1
公开(公告)日:2013-01-31
There is disclosed crystalline darunavir hydrate substantially free of any non-aqueous solvent.