[EN] PROCESS FOR PREPARING BOSENTAN<br/>[FR] PROCÉDÉ DE PRÉPARATION DE BOSENTAN
申请人:GENERICS UK LTD
公开号:WO2009098517A1
公开(公告)日:2009-08-13
The present invention relates to a novel intermediate useful in the preparation of bosentan and to processes for the preparation of said intermediate and bosentan. The invention further relates to compositions comprising bosentan prepared according to the processes of the invention and their use in the treatment of endothelin-receptor mediated disorders.
[EN] AN IMPROVED PROCESS FOR PREPARING BOSENTAN<br/>[FR] PROCÉDÉ AMÉLIORÉ DE PRÉPARATION DE BOSENTAN
申请人:ALEMBIC PHARMACEUTICALS LTD
公开号:WO2012073135A1
公开(公告)日:2012-06-07
The present invention relates to an improved process for preparing Bosentan of formula (I).
本发明涉及一种改进的制备化学式(I)的博生坦的方法。
PROCESS FOR THE PREPARATION OF BOSENTAN MONOHYDRATE
申请人:Kompella Amala Kishan
公开号:US20130245259A1
公开(公告)日:2013-09-19
The invention relates to improved processes for the preparation of bosentan monohydrate which provide higher yield and purity.
这项发明涉及改进的制备博瑟坦单水合物的工艺,可提供更高的产量和纯度。
PROCESSES FOR THE PREPARATION OF BOSENTAN AND ITS INTERMEDIATES THEREOF
申请人:Yadav Roop Singh
公开号:US20100256371A1
公开(公告)日:2010-10-07
The present invention relates to processes for the preparation of bosentan and compounds that can be used as structurally novel intermediates for the synthesis thereof, and a pharmaceutical composition of the same.
本发明涉及用于制备博瑟坦和可用作其合成的结构新型中间体的过程,以及相应的药物组合物。
[EN] PROCESS FOR INTRODUCTION OF HYDROXYETHOXY SIDE CHAIN IN BOSENTAN<br/>[FR] PROCÉDÉ D'INTRODUCTION D'UNE CHAÎNE LATÉRALE HYDROXYÉTHOXY DANS LE BOSENTAN
申请人:GENERICS UK LTD
公开号:WO2009004374A1
公开(公告)日:2009-01-08
The present invention relates to an improved process for the preparation of bosentan. In particular it relates to a process for preparing bosentan substantially free from the dirner impurity of formula (II) and the 6-hydroxy impurity of formula (III). The invention also relates to a pharmaceutical composition comprising bosentan and its use in the treatment of endothelin-receptor mediated disorders.