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    • 3. 发明授权
    • Method of preparing rhenium complex using borohydride exchange resin
    • 使用硼氢化物交换树脂制备铼配合物的方法
    • US06888019B1
    • 2005-05-03
    • US10838805
    • 2004-05-04
    • Sang Hyun ParkKyung Bae ParkSun Ju Choi
    • Sang Hyun ParkKyung Bae ParkSun Ju Choi
    • C07F13/00A61K51/00
    • C07F13/005A61K51/0478
    • Disclosed is a method of preparing a rhenium complex by use of a borohydride exchange resin, including dissolving perrhenic acid in a solution containing ethylenediamine tetraacetate, mannitol and stannous chloride to obtain a perrhenic acid solution (step 1), which is then mixed with disulfide in the presence of a borohydride exchange resin and reacts at room temperature, to obtain a rhenium complex (step 2). The preparation method of the current invention is characterized in that rhenium is reduced to have a desired oxidation number through the dissolving of the step 1, whereby the reaction of the step 2 can occur at room temperature. In addition, use of the borohydride exchange resin as a reducing agent results in direct formation of the rhenium complex of sulfide from disulfide, without the need of synthesis of thiol-protected S-precursor. Therefore, radioactive pharmaceuticals having high values can be economically and efficiently produced.
    • 公开了使用硼氢化物交换树脂制备铼络合物的方法,包括将高铼酸溶解在含有乙二胺四乙酸酯,甘露糖醇和氯化亚锡的溶液中以获得高铼酸溶液(步骤1),然后将其与二硫化物混合 硼氢化物交换树脂的存在并在室温下反应,得到铼络合物(步骤2)。 本发明的制备方法的特征在于,通过步骤1的溶解将铼还原成具有所需的氧化数,由此步骤2的反应可以在室温下进行。 此外,使用硼氢化物交换树脂作为还原剂导致硫化物从二硫化物直接形成铼络合物,而不需要合成硫醇保护的S-前体。 因此,具有高价值的放射性药物可以经济有效地产生。
    • 4. 发明授权
    • Method of preparing iodine seed for treating eye disease or cancer, and iodine seed prepared thereby
    • 制备碘晶种治疗眼病或癌症的方法及由此制备的碘种子
    • US09421282B2
    • 2016-08-23
    • US13765072
    • 2013-02-12
    • Kang Hyuk ChoiKwang Jae SonJin-Hee LeeSung-Soo NamSun Ju Choi
    • Kang Hyuk ChoiKwang Jae SonJin-Hee LeeSung-Soo NamSun Ju Choi
    • A61M36/14A61K51/00A61K51/02A61K51/12
    • A61K51/00A61K51/02A61K51/1282
    • The present invention provides a technique for adsorbing I-125 on a support for treating cancer and a method of preparing an I-125 seed using the same. Since a method of preparing iodine according to the present invention uses an intermediate having phosphate-based, oxalate-based, or arsenate-based anions introduced thereinto, the intermediate has a substitution effect of iodine 3 to 5 times higher than that of a typically used intermediate having chlorine anions introduced thereinto. According to the substitution effect, control of a radiation dose may be possible during the manufacturing of an iodine seed and an iodine seed may be prepared within a shorter period of time. Also, since an amount of residual radioactive iodine may be decreased as a result of a large amount of adsorption, an amount of radioactive iodine (I-125) waste may be decreased, and the effect thereof may be also high environmentally.
    • 本发明提供了用于将I-125吸附在用于治疗癌症的支持体上的技术,以及使用该技术制备I-125种子的方法。 由于根据本发明的制备碘的方法使用引入其中含有基于磷酸盐,草酸盐或砷酸盐的阴离子的中间体,所以中间体具有碘的替代效应,比通常使用的碘的比例高3至5倍 带有氯阴离子的中间体。 根据替代效果,在制造碘种子期间可以控制辐射剂量,并且可以在更短的时间内制备碘种子。 另外,由于吸附量大,残留的放射性碘量可能会降低,因此放射性碘(I-125)废物的量可能会降低,其效果也可能较高。