[EN] SYNTHESIS OF ANTIDIABETIC ROSIGLITAZONE DERIVATIVES<br/>[FR] SYNTHESE DE DERIVES DE ROSIGLITAZONE CONTRE LE DIABETE
申请人:CIPLA LTD
公开号:WO2005105794A1
公开(公告)日:2005-11-10
A process of preparing rosiglitazone, or a pharmaceutically acceptable salt thereof, which process employs an intermediate metabisulphite complex of 4-[2-(N-methyl-N-(2-pyridyl)amino) ethoxy] benzaldehyde, which metabisulphite complex is represented by following formula (III); where X represents an alkali metal. The present invention further provides rosiglitazone, or a pharmaceutically acceptable salt thereof, prepared by the above process.
一种制备罗格列酮或其药用可接受盐的过程,该过程利用4-[2-(N-甲基-N-(2-吡啶基)氨基)乙氧基]苯甲醛的亚硫酸盐复合物作为中间体,该亚硫酸盐复合物由以下式(III)表示;其中X代表碱金属。本发明还提供了通过上述过程制备的罗格列酮或其药用可接受盐。