会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 37. 发明授权
    • 리세드론산 나트륨 헤미펜타하이드레이트의 제조방법
    • 制备磺酸钠盐酸盐的方法
    • KR100798855B1
    • 2008-01-28
    • KR1020070015327
    • 2007-02-14
    • 주식회사 엔지켐생명과학
    • 이태석육진수이종수유창현이주철이철민이완희
    • C07F9/576C07F1/04
    • C07F9/58
    • A method for preparing sodium risedronate hemipentahydrate is provided to simplify the preparation procedures, and improve reproducibility, production yield, purity and economical efficiency of preparation, so that the compound is useful for treating bone diseases and calcium metabolism disorders. A method for preparing sodium risedronate hemipentahydrate represented by the formula(1) comprises the steps of: suspending risedronic acid represented by the formula(2) in water, adding sodium base into the water, cooling the mixture to 0-10 deg.C, and stirring the mixture to prepare nucleated slurry of sodium risedronate hemipentahydrate; and adding a water mixable organic solvent to the slurry, wherein the sodium base is sodium hydroxide, sodium acetate or sodium 2-ethylhexanoic acid; and the water mixable organic solvent is methanol, ethanol, isopropanol, acetone, acetonitrile or tetrahydrofuran.
    • 提供了一种制备利塞膦酸钠半水合物的方法,以简化制备过程,提高制备的再现性,产率,纯度和经济效率,使化合物可用于治疗骨骼疾病和钙代谢紊乱。 由式(1)表示的利塞膦酸二水合二钠的方法包括以下步骤:将由式(2)表示的利塞膦酸悬浮于水中,将钠碱加入水中,将混合物冷却至0-10℃, 并搅拌该混合物以制备利塞膦酸钠半水合物的有核浆液; 并向该浆料中加入水可混合有机溶剂,其中钠碱为氢氧化钠,乙酸钠或2-乙基己酸钠; 水可混合有机溶剂为甲醇,乙醇,异丙醇,丙酮,乙腈或四氢呋喃。