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
    • 1. 发明授权
    • Cefazolin sodium pentahydrate crystal and its molecular assembly preparation method
    • 头孢唑啉五水合物晶体及其分子装配制备方法
    • US08178521B2
    • 2012-05-15
    • US12085110
    • 2006-09-15
    • Jingkang WangYuxin QianMeijing ZhangJiehua WuZhan'ao Yang
    • Jingkang WangYuxin QianMeijing ZhangJiehua WuZhan'ao Yang
    • C07D501/36C07D501/02C07D501/12C07D501/59A61K31/545
    • C07D501/36C07D501/02C07D501/12
    • The present invention relates to cefazolin sodium pentahydrate crystal and a method for assembly and preparation of the crystal molecule. The cefazolin sodium pentahydrate crystal molecule contains five water molecules, orthorhombic system, space group of C222(1), in which sodium ion is bonded to the cefazolin molecule with a coordinate bond. The method for assembly and preparation of cefazolin sodium pentahydrate crystal molecule are: adding a solvent to a reactor equipped with a jacket, adding cefazolin acid and a sodium salt, heating until the reaction solution is clear, stirring continuously, adjusting pH, upon the completion of the reaction, transferring the liquid into a jacketed crystallizer, adding crystal seeds or nucleating spontaneously, controlling cooling, slowly adding a antisolvent. The particle size of cefazolin sodium pentahydrate crystal according to the present invention is adjustable, and the distribution of particle size is concentrated, the product has good flowability, smooth surface, high crystallinity, good stability, and rapid dissolving rate.
    • 本发明涉及头孢唑啉五水合物晶体及其制备方法。 头孢唑啉五水合物晶体分子含有五个水分子,斜方晶系,C222(1)的空间基团,其中钠离子与头孢唑啉分子键合。 头孢唑啉五水合物晶体分子的组装和制备方法是:向装有夹套的反应器中加入溶剂,加入头孢唑啉酸和钠盐,加热至反应液澄清,连续搅拌,调整pH值,完成后 将液体转移到夹套结晶器中,加入晶种或自发成核,控制冷却,缓慢加入抗溶剂。 本发明头孢唑啉五水合物晶体的粒度可调,粒径分布浓缩,产品流动性好,表面光滑,结晶度高,稳定性好,溶解速度快。
    • 2. 发明申请
    • Cefazolin Sodium Pentahydrate Crystal and Its Molecular Assembly Preparation Method
    • 头孢唑啉五水合物晶体及其分子装配制备方法
    • US20090299056A1
    • 2009-12-03
    • US12085110
    • 2006-09-15
    • Jingkang WangYuxin QianMeijing ZhangJiehua WuZhan'ao Yang
    • Jingkang WangYuxin QianMeijing ZhangJiehua WuZhan'ao Yang
    • C07D501/59
    • C07D501/36C07D501/02C07D501/12
    • The present invention relates to cefazolin sodium pentahydrate crystal and a method for assembly and preparation of the crystal molecule. The cefazolin sodium pentahydrate crystal molecule contains five water molecules, orthorhombic system, space group of C222(1), in which sodium ion is bonded to the cefazolin molecule with a coordinate bond. The method for assembly and preparation of cefazolin sodium pentahydrate crystal molecule are: adding a solvent to a reactor equipped with a jacket, adding cefazolin acid and a sodium salt, heating until the reaction solution is clear, stirring continuously, adjusting pH, upon the completion of the reaction, transferring the liquid into a jacketed crystallizer, adding crystal seeds or nucleating spontaneously, controlling cooling, slowly adding a antisolvent. The particle size of cefazolin sodium pentahydrate crystal according to the present invention is adjustable, and the distribution of particle size is concentrated, the product has good flowability, smooth surface, high crystallinity, good stability, and rapid dissolving rate.
    • 本发明涉及头孢唑啉五水合物晶体及其制备方法。 头孢唑啉五水合物晶体分子含有五个水分子,斜方晶系,C222(1)的空间基团,其中钠离子与头孢唑啉分子键合。 头孢唑啉五水合物晶体分子的组装和制备方法是:向装有夹套的反应器中加入溶剂,加入头孢唑啉酸和钠盐,加热至反应液澄清,连续搅拌,调整pH值,完成后 将液体转移到夹套结晶器中,加入晶种或自发成核,控制冷却,缓慢加入抗溶剂。 本发明头孢唑啉五水合物晶体的粒径可调,粒径分布浓缩,产品流动性好,表面光滑,结晶度高,稳定性好,溶解速度快。