[EN] AN IMPROVED PROCESS FOR THE PREPARATION OF MACITENTAN<br/>[FR] PROCÉDÉ AMÉLIORÉ DE PRÉPARATION DE MACITENTANE
申请人:LAURUS LABS PRIVATE LTD
公开号:WO2017093903A1
公开(公告)日:2017-06-08
The present invention relates to an improved process for the preparation of macitentan and pharmaceutical acceptable salts thereof. Further present invention also relates to methylene chloride solvate of macitentan and their use in the preparation of pure macitentan.
[EN] PROCESS FOR PREPARATION OF MACITENTAN<br/>[FR] PROCÉDÉ DE PRÉPARATION DE MACITENTAN
申请人:SHILPA MEDICARE LTD
公开号:WO2017191565A1
公开(公告)日:2017-11-09
The present invention relates to a process for the preparation of N-[5-(4-Bromophenyl)- 6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-N'propylsulfamide or Macitentan of Formula (I). The present invention further relates to a process for the preparation highly pure N-[5- (4-Bromophenyl)-6- [2- [(5 -bromo-2-pyrimidinyl)oxy]ethoxy] -4-pyrimidinyl] - N'propylsulfamide or Macitentan of Formula (I). Said substantially pure Macitentan is useful in the preparation of pharmaceutical composition for the treatment of cardiac disorders.
Macitentan (systematic name N-[5-(4-bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy] ethoxy]-4-pyrimidinyl]-N'-propylsulfamide, 5, Scheme 1) is an endothelinreceptorantagonist (ERA) approved by the...
The Discovery of <i>N</i>-[5-(4-Bromophenyl)-6-[2-[(5-bromo-2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl]-<i>N</i>′-propylsulfamide (Macitentan), an Orally Active, Potent Dual Endothelin Receptor Antagonist
medicinal chemistry program aiming at the identification of novel potent dual endothelin receptor antagonists with high oral efficacy. This led to the discovery of a novelseries of alkyl sulfamide substituted pyrimidines. Among these, compound 17 (macitentan, ACT-064992) emerged as particularly interesting as it is a potent inhibitor of ETA with significant affinity for the ETB receptor and shows excellent
[EN] PROCESS FOR PREPARING A PYRIMIDINE INTERMEDIATE<br/>[FR] PROCÉDÉ POUR PRÉPARER UN INTERMÉDIAIRE DE PYRIMIDINE
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2015004265A1
公开(公告)日:2015-01-15
The present invention relates to a process for preparing a pyrimidine intermediate, namely the compound of formula I-2 or a salt thereof. Said compound of formula I-2 or its salt can be used to prepare macitentan. Macitentan (chemical names: N-[5-(4-bromophenyl)-6-[2-[(5-bromo- 2-pyrimidinyl)oxy]ethoxy]-4-pyrimidinyl] -N'-propylsulfamide or N-[5-(4-bromophenyl)- 6- 2- [(5 -bromopyrimidin-2-yl)oxy] ethoxy } pyrimidin-4-yl] -N'-propylsulfuric diamide) is an endothelin receptor antagonist that has notably been approved by the US Food and Drug Administration and the European Commission for the treatment of pulmonary arterial hypertension. It has been first disclosed in WO 02/053557. The last step of one of the potential preparation routes described in WO 02/053557, called "Possibility A" and "Possibility B", can be summarised as shown in Scheme Al hereafter.