申请人:——
公开号:US20040224366A1
公开(公告)日:2004-11-11
Molecules comprising aminooxy groups are provided, wherein the aminooxy groups provide attachment sites for the covalent attachment of other molecules. In one embodiment, polyoxyethylene molecules comprising aminooxy groups are provided that can be conjugated to wide variety of biologically active molecules including poly(amino acids). In another embodiment, valency platform molecules comprising aminooxy groups are provided. The aminooxy groups can be used to form covalent bonds with biological molecules such as poly(amino acids). The aminooxy groups can, for example, react with poly(amino acids) modified to contain carbonyl groups, such as glyoxyl groups, to form a conjugate of the valency platform molecule and the biologically active molecule via an oxime bond. The valency platform molecules comprising aminooxy groups are advantageously reactive in the formation of conjugates, and they also can be readily synthesized to form a composition with very low polydispersity.
提供了含有氨氧基团的分子,其中氨氧基团提供了其他分子的共价连接点。在一个实施例中,提供了含有氨氧基团的聚氧乙烯分子,可以与包括聚(氨基酸)在内的各种生物活性分子结合。在另一个实施例中,提供了含有氨氧基团的价平台分子。氨氧基团可以用于与生物分子(如聚(氨基酸))形成共价键。例如,氨氧基团可以与改性为含有羰基基团(如乙酰甘氨酸基团)的聚(氨基酸)反应,通过肟键形成价平台分子和生物活性分子的结合物。含有氨氧基团的价平台分子在形成结合物时具有优异的反应性,而且它们也可以容易地合成成具有非常低的多分散性的组合物。