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. 发明申请
    • CRYSTALLINE TEMOZOLOMIDE MONOHYDRATE AND PROCESS FOR PREPARATION THEREOF
    • 结晶聚苯乙烯单硬脂酸酯及其制备方法
    • WO2008111092A1
    • 2008-09-18
    • PCT/IN2008/000134
    • 2008-03-10
    • DABUR PHARMA LIMITEDPANDA, BijanMAIKAP, Golak, ChandraAGARWAL, Shiv, KumarSINGH, Manoj, KumarJAGGI, Manu
    • PANDA, BijanMAIKAP, Golak, ChandraAGARWAL, Shiv, KumarSINGH, Manoj, KumarJAGGI, Manu
    • C07D487/04
    • C07D487/04
    • A crystalline Temozolomide Monohydrate. A process for preparing the same comprising: i) dissolving Temozolomide, having a purity of 50-70% in acetone at a temperature of about 50-55°C; ii) optionally adding activated carbon to the solution of step i); iii) filtering the activated carbon from the mixture of step ii); iv) evaporating the filtrate of step iii) to obtain a solid substance; v) dissolving the solid substance obtained in step iv) in a mixture of acetone and water in the ratio of 3:1 v/v at a temperature from about 50°C to reflux temperature; vi) optionally adding activated carbon to the solution of step v); vii) cooling the mixture of step vi) to ambient temperature; viii) filtering the activated carbon from the mixture of step vii); ix) cooling the filtrate of step viii) to a temperature of 0-5 °C and collecting the crystals and drying the filtrate of step viii) to give the crystalline Temozolomide Monohydrate.
    • 结晶替莫唑胺一水合物。 一种制备该方法的方法,包括:i)在约50-55℃的温度下将纯度为50-70%的替莫唑胺溶于丙酮; ii)任选地将活性炭加入到步骤i)的溶液中; iii)从步骤ii)的混合物过滤活性炭; iv)蒸发步骤iii)的滤液以获得固体物质; v)将步骤iv)中获得的固体物质在约50℃至回流温度下以3:1v / v的比例溶解在丙酮和水的混合物中; vi)任选地将活性炭加入到步骤v)的溶液中; vii)将步骤vi)的混合物冷却至环境温度; viii)从步骤vii)的混合物过滤活性炭; ix)将步骤viii)的滤液冷却至0-5℃的温度,并收集晶体并干燥步骤viii)的滤液,得到结晶的替莫唑胺一水合物。