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    • 1. 发明公开
    • 고순도의 메톡시폴리에틸렌글리콜 및 그들의 유도체의제조방법
    • 甲氧基乙基乙二醇及其衍生物的新制备方法
    • KR1020070024443A
    • 2007-03-02
    • KR1020060112267
    • 2006-11-14
    • 아이디비켐(주)
    • 박병욱김성년이종구이주성
    • C08G65/48C08G65/34
    • A method for preparing methoxypolyethylene glycol(m-PEG) phthalate is provided to obtain high-purity m-PEG derivatives present stably in an aqueous solution state, and to avoid a need for an organic solvent. The method for preparing methoxypolyethylene glycol phthalate with a purity of at least 99% comprises the steps of: (1) introducing methoxypolyethylene glycol into toluene and removing toluene by atmospheric distillation; (2) cooling the product to room temperature and introducing a metal alkoxide in the presence of an alcohol; (3) introducing phthalic anhydride thereto to perform a reaction; (4) neutralizing the reaction mixture and extracting the reaction mixture with methylene chloride; (5) washing the methylene chloride layer with water; (6) introducing a solvent to the methylene chloride layer to perform crystallization; and (7) forming an aqueous solution of the crystallized product and purifying the aqueous solution by column chromatography.
    • 提供了一种制备甲氧基聚乙二醇(m-PEG)邻苯二甲酸酯的方法,以获得在水溶液状态下稳定存在的高纯度m-PEG衍生物,并避免了对有机溶剂的需要。 制备纯度至少为99%的甲氧基聚乙二醇邻苯二甲酸酯的方法包括以下步骤:(1)将甲氧基聚乙二醇引入甲苯中并通过常压蒸馏除去甲苯; (2)将产物冷却至室温并在醇存在下引入金属醇盐; (3)将邻苯二甲酸酐引入其中进行反应; (4)中和反应混合物并用二氯甲烷萃取反应混合物; (5)用水洗涤二氯甲烷层; (6)向二氯甲烷层中引入溶剂进行结晶; 和(7)形成结晶产物的水溶液,并通过柱色谱纯化水溶液。
    • 3. 发明授权
    • 고순도의 메톡시폴리에틸렌글리콜 및 그들의 유도체의제조방법
    • 甲氧基乙基乙二醇及其衍生物的新制备方法
    • KR100664969B1
    • 2007-01-04
    • KR1020050078619
    • 2005-08-26
    • 아이디비켐(주)
    • 박병욱김성년이종구이주성
    • C08G65/48C08G65/34
    • C08G65/30
    • A method for preparing high-purity methoxypolyethylene glycol is provided to obtain methoxypolyethylene glycol derivative having a purity of 99% or higher and stable in an aqueous solution state. The method for preparing high-purity methoxypolyethylene glycol having a purity of 99% or higher and a polydispersity of 1.05 or less comprises the steps of: (1) forming methoxypolyethylene glycol-acetic acid from methoxypolyethylene glycol; (2) purifying the methoxypolyethylene glycol-acetic acid by using a column; (3) forming methoxypolyethylene glycol-alkyl ester from the purified methoxypolyethylene glycol-acetic acid; and (4) reducing the methoxypolyethylene glycol-alkyl ester to obtain high-purity methoxypolyethylene glycol.
    • 提供制备高纯度甲氧基聚乙二醇的方法,得到纯度为99%以上且在水溶液状态下稳定的甲氧基聚乙二醇衍生物。 制备纯度为99%以上,多分散性为1.05以下的高纯度甲氧基聚乙二醇的方法包括以下步骤:(1)由甲氧基聚乙二醇形成甲氧基聚乙二醇 - 乙酸; (2)使用柱纯化甲氧基聚乙二醇 - 乙酸; (3)从纯化的甲氧基聚乙二醇 - 乙酸形成甲氧基聚乙二醇 - 烷基酯; 和(4)还原甲氧基聚乙二醇 - 烷基酯以获得高纯度甲氧基聚乙二醇。