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
    • 5. 发明申请
    • Method of analyzing the ratio of activation of terminals of polyoxyalkylene derivatives
    • 分析聚氧化烯衍生物末端活化比例的方法
    • US20050208671A1
    • 2005-09-22
    • US11019189
    • 2004-12-23
    • Nobuko TakanoKouzoh Sanchika
    • Nobuko TakanoKouzoh Sanchika
    • G01N30/86G01N33/00
    • G01N30/8624G01N30/8631
    • An object the invention is to provide a method of analyzing the activation ratio of terminals of a polyoxyalkylene derivative so that the ratio can be accurately measured at a high precision even when the polyoxyalkylene derivative has a high molecular weight. The activation ratio of terminal of a polyoxyalkylene derivative having a terminal active group capable of bonding with a biologically active substance having a molecular weight of 1000 to 100000 is analyzed. The active group is labeled using a labeling reagent having an ionic functional group. The polyoxyalkylene derivative is then analyzed by means of liquid chromatography using an ion-exchange column and an RI detector outputting a chromatogram. The activation ratio of terminal is obtained based on percentage of an area of a peak corresponding to the active group in the chromatogram.
    • 本发明的目的是提供一种分析聚氧亚烷基衍生物的末端的活化比例的方法,即使聚氧亚烷基衍生物具有高分子量也能以高精度精确测定该比例。 分析具有能够与分子量为1000〜100000的生物活性物质结合的末端活性基团的聚氧化烯衍生物的末端的活化率。 使用具有离子官能团的标记试剂对活性基团进行标记。 然后使用离子交换柱和输出色谱图的RI检测器通过液相色谱分析聚氧化烯衍生物。 基于色谱图中与活性基团对应的峰面积的百分比获得末端的活化比例。
    • 7. 发明授权
    • Process for producing a polyoxyalkylene derivatives substituted with
succinimidyl group
    • 用琥珀酰亚胺基取代的聚氧化烯衍生物的制造方法
    • US5872191A
    • 1999-02-16
    • US867985
    • 1997-06-03
    • Kouzoh SanchikaTohru YasukohchiKei-ichi MaruyamaSyunsuke Ohhashi
    • Kouzoh SanchikaTohru YasukohchiKei-ichi MaruyamaSyunsuke Ohhashi
    • C07D207/46C08G65/32C08G65/329C08G65/332C08G65/333C08L71/02
    • C08G65/329C08G65/33337
    • A process for producing a polyoxyalkylene derivative substituted with succinimidyl group which comprises reacting a polyoxyalkylene compound having carboxyl group at ends with N-hydroxysuccinimide in an inert solvent in the presence of dicyclohexylcarbodiimide; dissolving an obtained reaction product into chloroform, an amount by weight of chloroform being 0.5 to 10 times as much as an amount by weight of the polyoxyalkylene compound having carboxyl group at ends; and crystallizing the polyoxyalkylene derivative substituted with succinimidyl group by adding an aliphatic hydrocarbon having 5 to 8 carbon atoms to a resultant solution, an amount by weight of the aliphatic hydrocarbon being 2 to 10 times as much as an amount by weight of chloroform. Materials can be handled with safety, and a highly pure polyoxyalkylene derivative substituted with succinimidyl group which does not cause turbidity in an aqueous solution and has an excellent quality as a material for drugs can be produced.
    • 一种制备被琥珀酰亚胺基取代的聚氧化烯衍生物的方法,包括在二环己基碳二亚胺的存在下,在惰性溶剂中使具有羧基的聚氧化烯化合物与N-羟基琥珀酰亚胺反应; 将得到的反应产物溶解在氯仿中,氯仿的重量为末端具有羧基的聚氧化烯化合物的重量的0.5〜10倍; 并通过向所得溶液中加入碳原子数为5〜8的脂肪族烃而使被琥珀酰亚胺基取代的聚氧化烯衍生物结晶化,所述脂肪族烃的重量比为氯仿的2〜10倍。 可以安全地处理材料,并且可以制备用琥珀酰亚胺基取代的高纯度聚氧化烯衍生物,其不会在水溶液中引起浊度并且具有作为药物的材料的优良品质。