Process for making lipid conjugates
    1.
    发明授权
    Process for making lipid conjugates 失效
    制备脂质缀合物的方法

    公开(公告)号:US5451661A

    公开(公告)日:1995-09-19

    申请号:US147270

    申请日:1993-11-05

    申请人: Barbara Y. Wan

    发明人: Barbara Y. Wan

    摘要: A process is described for generating conjugates of lipids and biologically active agents to produce compositions having therapeutic utility, such as drug delivery vehicles. The process involves mixing the reactive lipid with an appropriate amount of diketene to form an acetoacetylated lipid which is then isolated, dissolved in a suitable medium, and mixed with a nucleophilic-containing biologically active agent to form a biologically active agent-lipid conjugate. Alternatively, the acetoacetylated lipid can be mixed with a polyamine to form a cationic lipid.

    摘要翻译: 描述了一种用于产生脂质和生物活性剂的缀合物以产生具有治疗效用的组合物的方法,例如药物递送载体。 该方法包括将反应性脂质与适量的双烯酮混合以形成乙酰乙酰化的脂质,然后将其分离,溶解在合适的培养基中,并与含亲核的生物活性剂混合以形成生物活性剂 - 脂质缀合物。 或者,乙酰乙酰化的脂质可以与多胺混合以形成阳离子脂质。

    Oligosaccharide oxazolines, oligosaccharide conjugates and methods of
preparation thereof
    3.
    发明授权
    Oligosaccharide oxazolines, oligosaccharide conjugates and methods of preparation thereof 失效
    低聚物氧化腈,低聚糖结合物及其制备方法

    公开(公告)号:US5241072A

    公开(公告)日:1993-08-31

    申请号:US529343

    申请日:1990-05-25

    摘要: This invention relates to a method of producing peracetyloxazolines from peracetyl saccharides. The method involves reacting the starting material, a peracetyl saccharide, with a reagent combination, to directly produce the peracetyl oxazoline. This method may be used for the activation of oligosaccharides, wherein an oligosaccharide containing a reducing GlcNAc terminus is activated by the formation of an orazoline at the terminal GlcNAc, and then coupled with a bifunctional spacer to provide an oligosaccharide-spacer conjugate. The activated oligosaccharide-spacer conjugate is then coupled to a protein, such as granulocyte colony stimulating factor or .gamma.-interferon, providing a neoglycoprotein conjugate. The invention provides a method for forming neoglycoprotein conjugates which may improve biological and physiochemical properties of the protein. For example, serum lifetime or efficiency of drug delivery of the peptide to a target organ or cell may be improved.

    摘要翻译: 本发明涉及一种由过乙酰糖制备过乙酰氧氟唑啉的方法。 该方法包括使起始材料,乙酰基糖与试剂组合反应,直接生成乙酰基恶唑啉。 该方法可用于活化低聚糖,其中通过在末端GlcNAc处形成呋喃唑啉来活化含有还原性GlcNAc末端的寡糖,然后与双功能间隔基偶联以提供寡糖 - 间隔基偶联物。 然后将活化的寡糖 - 间隔缀合物偶联至蛋白质,例如粒细胞集落刺激因子或γ-干扰素,提供新糖蛋白缀合物。 本发明提供了形成可以改善蛋白质的生物学和物理化学性质的新糖蛋白缀合物的方法。 例如,可以提高肽向靶器官或细胞的药物递送的血清寿命或效率。

    Oligosaccharide oxazolines, oligosaccharide conjugates and methods of
preparation thereof
    4.
    发明授权
    Oligosaccharide oxazolines, oligosaccharide conjugates and methods of preparation thereof 失效
    寡糖恶唑啉,寡糖共轭物及其制备方法

    公开(公告)号:US5659015A

    公开(公告)日:1997-08-19

    申请号:US959701

    申请日:1992-10-13

    摘要: This invention relates to a method of producing peracetyloxazolines from peracetyl saccharides. The method involves reacting the starting material, a peracetyl saccharide, with a reagent combination, to directly produce the peracetyl oxazoline. This method may be used for the activation of oligosaccharides, wherein an oligosaccharide containing a reducing GlcNAc terminus is activated by the formation of an oxazolide at the terminal GlcNAc, and then coupled with a bifunctional spacer to provide an oligosaccharide-spacer conjugate. The activated oligosaccharide-spacer conjugate is then coupled to a protein, such as granulocyte colony stimulating factor or .gamma.-interferon, providing a neoglycoprotein conjugate. The invention provides a method for forming neoglycoprotein conjugates which may improve biological and physiochemical properties of the protein. For example, serum lifetime or efficiency of drug delivery of the peptide to a target organ or cell may be improved.

    摘要翻译: 本发明涉及一种由过乙酰糖制备过乙酰氧氟唑啉的方法。 该方法包括使起始材料,乙酰基糖与试剂组合反应,直接生成乙酰基恶唑啉。 该方法可以用于活化低聚糖,其中通过在末端GlcNAc处形成恶唑化物来活化含有还原性GlcNAc末端的寡糖,然后与双功能间隔基偶联以提供寡糖 - 间隔子缀合物。 然后将活化的寡糖 - 间隔缀合物偶联至蛋白质,例如粒细胞集落刺激因子或γ-干扰素,提供新糖蛋白缀合物。 本发明提供了形成可以改善蛋白质的生物学和物理化学性质的新糖蛋白缀合物的方法。 例如,可以提高肽向靶器官或细胞的药物递送的血清寿命或效率。