申请人:SEQUENT SCIENTIFIC LIMITED
公开号:US20140100385A1
公开(公告)日:2014-04-10
The present invention relates to a process for the preparation of succinylcholine chloride, a pharmaceutically active compound used as skeletal muscle relaxant which comprises condensing succinic anhydride with N,N-diemthylaminoethanol using a catalyst in presence of a solvent to form bis[2-(dimethylamino)ethyl]succinate; in situ purifying the bis[2-(dimethylamino)ethyl]succinate using a base; reacting pure bis[2-(dimethylamino)ethyl]succinate with methyl chloride gas using an alcohol; and purifying the obtained crude succinylcholine chloride using water and alcohol.
该发明涉及一种制备琥珀酰胆碱氯化物的过程,该化合物是一种用作骨骼肌松弛剂的药用活性化合物,包括在溶剂存在的条件下,利用催化剂将琥珀酸酐与N,N-二甲基氨基乙醇缩合,形成双[2-(二甲基氨基)乙基]琥珀酸酯;原位利用碱净化双[2-(二甲基氨基)乙基]琥珀酸酯;用醇反应纯净的双[2-(二甲基氨基)乙基]琥珀酸酯与氯甲烷气体;并利用水和醇净化所得的粗琥珀酰胆碱氯化物。