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    • 1. 发明授权
    • MRI contrast agent having gadolinium complex
    • 具有钆络合物的MRI造影剂
    • US08901294B2
    • 2014-12-02
    • US13876904
    • 2010-12-21
    • Tae-Jeong KimYong Min ChangHee-Kyung KimSung-Wook Gu
    • Tae-Jeong KimYong Min ChangHee-Kyung KimSung-Wook Gu
    • C07D257/02C07F5/00A61K49/10
    • C07F5/00A61K49/106C07D257/02
    • The present invention relates to a magnetic resonance imaging (MRI) contrast agent including a gadolinium complex, more particularly to a DO3A-tranexamic acid or its ester compound, which is represented by the Chemical Formula 1. A DO3A-tranexamic acid or its ester compound may be prepared according to the present invention and a gadolinium complex may be prepared using the compound. An MRI contrast agent including the gadolinium complex prepared according to the present invention as an active ingredient has higher relaxivity as compared to the currently commercially available contrast agent. In addition, the MRI contrast agent according to the present invention has bifunctionality of liver-specific and blood-pool contrasting effect. Accordingly, since the MRI contrast agent including the gadolinium complex according to the present invention satisfies the key properties required for a contrast agent for MRI, it can be widely used as an MRI contrast agent and can provide enhanced contrasting effect as compared to the existing contrast agent.
    • 本发明涉及包含钆络合物的磁共振成像(MRI)造影剂,更具体地涉及由化学式1表示的DO3A-氨甲环酸或其酯化合物。DO3A-氨甲环酸或其酯化合物 可以根据本发明制备,并且可以使用该化合物制备钆络合物。 包含根据本发明制备的钆络合物作为活性成分的MRI造影剂与目前市售的造影剂相比具有更高的松弛度。 此外,根据本发明的MRI造影剂具有肝特异性和血池对比效果的双功能性。 因此,由于包含本发明的钆配合物的MRI造影剂满足MRI造影剂所需的关键性质,因此可以广泛用作MRI造影剂,与现有的对比度相比可以提供增强的对比效果 代理商
    • 4. 发明申请
    • MRI CONTRAST AGENT HAVING GADOLINIUM COMPLEX
    • 具有金属复合物的MRI对比剂
    • US20130231475A1
    • 2013-09-05
    • US13876904
    • 2010-12-21
    • Tae-Jeong KimYong Min ChangHee-Kyung KimSung-Wook Gu
    • Tae-Jeong KimYong Min ChangHee-Kyung KimSung-Wook Gu
    • C07F5/00C07D257/02
    • C07F5/00A61K49/106C07D257/02
    • The present invention relates to a magnetic resonance imaging (MRI) contrast agent including a gadolinium complex, more particularly to a DO3A-tranexamic acid or its ester compound, which is represented by the Chemical Formula 1. A DO3A-tranexamic acid or its ester compound may be prepared according to the present invention and a gadolinium complex may be prepared using the compound. An MRI contrast agent including the gadolinium complex prepared according to the present invention as an active ingredient has higher relaxivity as compared to the currently commercially available contrast agent. In addition, the MRI contrast agent according to the present invention has bifunctionality of liver-specific and blood-pool contrasting effect. Accordingly, since the MRI contrast agent including the gadolinium complex according to the present invention satisfies the key properties required for a contrast agent for MRI, it can be widely used as an MRI contrast agent and can provide enhanced contrasting effect as compared to the existing contrast agent.
    • 本发明涉及包含钆络合物的磁共振成像(MRI)造影剂,更具体地说,涉及由化学式1表示的DO3A-氨甲环酸或其酯化合物。DO3A-氨甲环酸或其酯化合物 可以根据本发明制备,并且可以使用该化合物制备钆络合物。 包含根据本发明制备的钆络合物作为活性成分的MRI造影剂与目前市售的造影剂相比具有更高的松弛度。 此外,根据本发明的MRI造影剂具有肝特异性和血池对比效果的双功能性。 因此,由于包含本发明的钆配合物的MRI造影剂满足MRI造影剂所需的关键性质,因此可以广泛用作MRI造影剂,与现有的对比度相比可以提供增强的对比效果 代理商
    • 5. 发明申请
    • Hollow Fiber Membrane and Preparing Method Thereof
    • 中空纤维膜及其制备方法
    • US20080261017A1
    • 2008-10-23
    • US12089135
    • 2006-10-09
    • Sung Su BaeTae Jeong KimSang Hoon KimSoon Hyuk ImHang Duk Rho
    • Sung Su BaeTae Jeong KimSang Hoon KimSoon Hyuk ImHang Duk Rho
    • C08K5/06
    • B01D69/141B01D69/081B01D71/34B01D2323/18B01D2325/022C08K5/053D01D5/24D01F6/12Y10T428/249978C08L27/16
    • The present invention relates to a polyvinylidene difluoride hollow fiber membrane and a method of preparing the same, and more particularly, to an improved polyvinylidene difluoride hollow fiber membrane and a preparation method thereof, in which a spinning solution consisting of polyvinylidene fluoride, alcohol dendrimer and organic solvent is prepared, and then is subjected to solidification by a wet-phase transition process, cleaning and drying, in which alcohol dendrimer that is an organic material as a pore former is introduced, allowing uniform disperse of alcohol dendrimer in polyvinylidene difluoride to form pores, with each having a high dispersion ability and a uniform size, and in which an excellent adhesion durability is imparted, owing to the use of a single material of polyvinylidene difluoride, unlike the conventional hollow fiber membrane preparation method in which pores are formed using existing inorganic particles.
    • 本发明涉及一种聚偏二氟乙烯中空纤维膜及其制备方法,更具体地说,涉及一种改进的聚偏二氟乙烯中空纤维膜及其制备方法,其中将由聚偏二氟乙烯,醇树枝状聚合物和 制备有机溶剂,然后通过湿相变过程,清洗和干燥进行固化,其中引入作为成孔剂的有机材料的醇树枝状聚合物,使得醇枝状聚合物均匀分散在聚偏二氟乙烯中以形成 由于使用聚偏二氟乙烯的单一材料,由于使用了单一的聚偏二氟乙烯材料,所以具有高的分散能力和均匀的尺寸,并且赋予了优异的粘合耐久性的孔,这不同于传统的中空纤维膜制备方法,其中使用 现有无机颗粒。