The present invention provides a novel form of 3-(3-4-[3-(β-D-glucopyranosyloxy)-5-isopropyl-1H-pyrazol-4-ylmethyl]-3-methylphenoxy}propylamino)-2,2-dimethylpropionamide with improved storage stability. Since 3-(3-4-[3-(β-D-glucopyranosyloxy)-5-isopropyl-1H-pyrazol-4-ylmethyl]-3-methylphenoxy}-propylamino)-2,2-dimethylpropionamide hemifumarate dihydrate has extremely excellent storage stability, it is useful as a drug substance. Furthermore, it shows an extremely good crystalline property and can be purified by a convenient method, and therefore is suitable for the industrial preparation.
本发明提供了一种新型的 3-(3-4-[3-(β-
D-吡喃葡萄糖氧基)-5-异丙基-1H-
吡唑-4-基甲基]-3-甲基苯氧基}丙基
氨基)-2,2-二甲基丙酰胺,其贮存稳定性得到了改善。由于 3-(3-4-[3-(β-
D-吡喃葡萄糖基氧基)-5-异丙基-1H-
吡唑-4-基甲基]-3-甲基苯氧基}-丙基
氨基)-2,2-二甲基丙酰胺半
富马酸盐二
水物具有极佳的储存稳定性,因此可用作药物。此外,它还具有极好的结晶性,并能通过简便的方法进行纯化,因此适合于工业制备。