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, HSO
4
, 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化可行的过程,用于分离式解决式I的顺式米纳西普兰的外消旋体和其药用可接受盐II。本发明包括使用外消旋式顺式米纳西普兰或其药用可接受盐作为起始物质,采用具有低成本和商业化可用性的分离剂III的工业安全和经济低成本材料,例如
水作为溶剂。所述过程导致具有优异光学纯度的外消旋式顺式米纳西普兰的光学异构体,而无需进行多次结晶步骤。本发明还包括绿色
化学的概念,因为该发明在
水作为溶剂的情况下运作良好,从而最大限度地减少了对任何其他溶剂的使用。其中X是从Cl、Br、I、HSO4、
磷酸盐或有机酸中选择的阴离子。III的
化学式应插入此处,*代表不对称中心,化合物III的
化学式代表
苹果酸及其衍
生物。