The use of sulfonylamido pyrimidines incorporating an unsaturated side chain as endothelin receptor antagonists
作者:Martin H Bolli、Christoph Boss、Martine Clozel、Walter Fischli、Patrick Hess、Thomas Weller
DOI:10.1016/s0960-894x(02)01084-3
日期:2003.3
A series of compounds structurally related to bosentan 1 featuring an unsaturatedsidechain at position 6 of the core pyrimidine have been studied for their potential to block the ET(A) and ET(B) receptor. Incorporation of a 2-butyne-1,4-diol linker bearing a pyridyl carbamoyl moiety led to in vitro highly potent endothelin receptor antagonists (e.g., 70 and 75). The propargyl derivative 26 significantly
The present invention relates to novel butyne diol derivatives of the general formula I and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more compounds of the general formula I and especially their use as endothelin receptor antagonists.
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] ACID ADDITION SALTS OF BOSENTAN<br/>[FR] SELS D'ADDITION D'ACIDE DE BOSENTAN
申请人:BIOCON LTD
公开号:WO2013057545A1
公开(公告)日:2013-04-25
The present invention relates to the stable acid addition salts of Bosentan that are useful for the purification of Bosentan base. In particular, the Bosentan acid addition salt is selected from Bosentan citrate and Bosentan tartrate.
[EN] PROCESS FOR PREPARATION OF BOSENTAN<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE BOSENTAN
申请人:CADILA HEALTHCARE LTD
公开号:WO2010032261A1
公开(公告)日:2010-03-25
The present invention provides improved processes for preparing Bosentan. The present invention provides novel intermediates like 4,6-dihydroxy-5-(2-methoxy phenoxy)[2,2'] bipyrimidine of formula (II) and N-(6-Chloro-5-(2- ethoxyphenoxy)[2,2'-bipyrimidinyl]-4-t-butyl benzenesulfonamide cesium salt and process for preparation thereof. The invention also disclosed novel polymorphic form of the intermediates.