[EN] A NEW PROCESS FOR PREPARING OPTICALLY PURE MILNACIPRAN AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS.<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION DE MILNACIPRAN OPTIQUEMENT PUR ET DE SES SELS DE QUALITÉ PHARMACEUTIQUE
申请人:ARCH PHARMALABS LTD
公开号:WO2012059933A1
公开(公告)日:2012-05-10
The present invention relates to an improved and commercially, viable process for the resolution of racemic cis milnacipran of formula I and its pharmaceutically acceptable salts of formula II. The present invention comprises using racemic cis milnacipran or its pharmaceutically acceptable salts as starting material, a low cost and commercially available resolving agent of formula III and industrially safe and economically low cost material such as water as a solvent. The said process results into optical isomers of racemic cis milnacipran having excellent optical purity without involving multiple crystallization steps. The present invention also comprises the concept of green chemistry as the invention works well with water as a solvent thereby minimizing the use of any other solvent. (Formular I and II should be inserted here) Wherein X is anion selected from Cl, Br, I, HSO4, Phosphate or organic acid(Formular III should be inserted here) *represent asymmetric centre Compound of formula III represent mandelic acid and its derivatives.
本发明涉及一种改进的商业可行的过程,用于分离式异构体顺式米纳西普兰(化学式I)及其药用可接受盐(化学式II)。本发明包括使用顺式米纳西普兰的异构体或其药用可接受盐作为起始物质,以及具有低成本且商业上可获得的分离剂(化学式III)和工业安全以及经济低成本材料(如水)作为溶剂。该过程导致顺式米纳西普兰的光学异构体具有优异的光学纯度,而无需进行多次结晶步骤。本发明还包括绿色化学概念,因为该发明与水作为溶剂良好配合,从而最小化了对任何其他溶剂的使用。
(化学式I和II应在此处插入)
其中X是从Cl、Br、I、HSO4、磷酸盐或有机酸中选择的阴离子
(化学式III应在此处插入)
*代表不对称中心,化合物的化学式III代表苯乙酸及其衍生物。