The present invention relates to an improved and efficient process for the preparation of Mycophenolate Mofetil in a high degree of pharmaceutically acceptable purity, which comprises the reaction of Mycophenolic acid or esters, or acid chlorides, or amides with metal salt of morpholino ethanol. A further aspect of the invention relates to the purification of Mycophenolate mofetil through salt formation and release of the free base which on recrystalized from suitable solvents to get highly pure Mycophenolate mofetil. The present invention provided a novel intermediate and process for preparation thereof. Also provided is new impurity of Mycophenolate mofetil and process for preparation thereof.
本发明涉及一种改进和高效的制备高度符合药用纯度的麦考
酚酯的过程,其中包括将
麦考酚酸或酯、酸
氯化物或酰胺与
吗啡啶
乙醇的
金属盐反应。本发明的另一个方面涉及通过盐形成和释放游离碱来纯化麦考
酚酯,然后通过适当溶剂的再结晶获得高纯度的麦考
酚酯。本发明提供了一种新颖的中间体和其制备方法。还提供了麦考
酚酯的新杂质及其制备方法。