An improved method for preparing dimethylamino-methyl-carbazolone and ondansetron base. A recrystallization process for preparing pure ondansetron hydrochloride dihydrate with a purity of at least 99.0% is also disclosed.
一种改进的制备
二甲氨基甲基
咔唑酮和安达舍隆的碱基的方法。还公开了一种用于制备纯度至少为99.0%的安达舍隆
盐酸二水合物的重结晶过程。