A method for the preparation of crystal form 1 of polymorphous crystalline torsemide, wherein torsemide is dissolved in an ethanol-water mixture with heating, after which the torsemide is subsequently cooled and dried once crystal separation has been performed. Drying takes place in a blade drier, for example, with the crystals being subjected to mechanical stress, wherein the crystals of crystalline form 2 are transformed into crystalline form 1.
一种制备多形结晶托瑟米特的晶体形式1的方法,其中托瑟米特在
乙醇-
水混合物中加热溶解,随后在晶体分离后进行冷却和干燥。干燥在刮刀干燥器中进行,晶体受到机械应力作用,其中晶体形式2的晶体转化为晶体形式1。