Method For Obtaining A Pharmaceutically Active Compound (Irbesartan) And Its Synthesis Intermediate
申请人:Huguet Clotet Joan
公开号:US20090124677A1
公开(公告)日:2009-05-14
It is provided a method for obtaining Irbesartan polymorph A, with few synthesis steps, by coupling the intermediate of formula (II) with the compound of formula (III), neutralising one of its alkaline salts in an aqueous medium and recrystallising the crude product obtained. The utilisation of said method obviates protection and deprotection of the tetrazole ring and is therefore of considerable interest for obtaining Irbesartan on a large industrial scale. The invention also refers to the synthesis intermediate of formula (II).
Method for obtaining a pharmaceutically active compound (Irbesartan) and its synthesis intermediate
申请人:Inke, S.A.
公开号:US07741492B2
公开(公告)日:2010-06-22
It is provided a method for obtaining Irbesartan polymorph A, with few synthesis steps, by coupling the intermediate of formula (II) with the compound of formula (III), neutralising one of its alkaline salts in an aqueous medium and recrystallising the crude product obtained. The utilisation of said method obviates protection and deprotection of the tetrazole ring and is therefore of considerable interest for obtaining Irbesartan on a large industrial scale. The invention also refers to the synthesis intermediate of formula (II).