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    • 98. 发明授权
    • A PROCESS FOR PREPARING CRYSTAL FOAM OF SARPOGRELATE HCL
    • 一种制备盐酸HCL水晶泡沫的方法
    • KR100911720B1
    • 2009-08-10
    • KR20090031464
    • 2009-04-10
    • HANSEO CHEMICAL CO LTD
    • OH MIN KEUNKIM KI NAMSUH KI HYOUNGKWON HYUK MAN
    • C07C213/06C07C219/06C07C219/10
    • A process for preparing crystalline sarpogrelate hydrochloride is provided to shorten operation process and operation time, to reduce generation rate of waste, and to produce type II crystal of sarpogrelate hydrochloride according to addition of methanol. A process for preparing crystalline sarpogrelate hydrochloride comprises the steps of: liberating a compound of chemical formula (III) and hydrochloride by controlling the pH of 2-[(3-dimethylamino-2-hydroxy)-propoxy]-3'-methoxybibenzyl hydrochloride of chemical formula (II) to 10~12 using 10% aqueous sodium hydroxide solution; extracting the compound of chemical formula (III) using any one extraction solvent selected from ethylacetate, dichloromethane and chloroform; reacting the compound of chemical formula (III) among the extraction solvents and succinic anhydride; and injecting chlorine gas in the reactant to obtain type II crystal of sarpogrelate hydrochloride.
    • 提供了一种制备盐酸沙格列酮盐酸盐的方法,以缩短操作过程和操作时间,降低废物的产生速率,并根据甲醇的添加产生盐酸沙格列酮的II型晶体。 制备盐酸沙格列酮盐酸盐的方法包括以下步骤:通过控制2 - [(3-二甲基氨基-2-羟基) - 丙氧基] -3'-甲氧基苄基盐酸盐的pH来释放化学式(III)和盐酸盐的化合物 化学式(II)至10〜12,使用10%氢氧化钠水溶液; 使用选自乙酸乙酯,二氯甲烷和氯仿的任何一种萃取溶剂萃取化学式(Ⅲ)化合物; 在萃取溶剂和琥珀酸酐中使化学式(Ⅲ)化合物反应; 并在反应物中注入氯气以获得盐酸沙格雷酯II型晶体。