申请人:Sakanoue Kenji
公开号:US20100029899A1
公开(公告)日:2010-02-04
An object of the present invention is to provide a novel multibranched polyoxyalkylene derivative, and an intermediate for the production thereof. Specifically, the object is to provide a multibranched polyoxyalkylene derivative which can keep a high activity of a bio-related substance modified with the multibranched polyoxyalkylene derivative and which can easily produce the modified substance; an intermediate thereof; and a bio-related substance to which the multibranched polyoxyalkylene derivative is bonded.
The novel multibranched polyoxyalkylene derivative according to the invention is a polyoxyalkylene derivative (1) having a functional group reactive with a bio-related substance and the bio-related substance according to the invention has a structure modified with the above polyoxyalkylene derivative (1) by a reaction. Furthermore, the intermediate for the production of the novel multibranched polyoxyalkylene derivative according to the invention is a polyoxyalkylene derivative (A).
wherein A
1
O and A
2
O independently represent an oxyalkylene group having 2 to 4 carbon atoms, m represents 20 to 500, n represents 15 to 700, R represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, X represents a functional group reactive with a bio-related substance, and X
1
represents a hydroxyl group which may be protected.
本发明的目的是提供一种新型的多支链聚氧烷衍生物及其制备中间体。具体而言,本发明旨在提供一种多支链聚氧烷衍生物,该衍生物可以保持与其修饰的生物相关物质的高活性,并且可以轻松地生产修饰后的物质;其制备中间体;以及与多支链聚氧烷衍生物结合的生物相关物质。本发明的新型多支链聚氧烷衍生物是一种具有与生物相关物质反应性功能团的聚氧烷衍生物(1),而本发明的生物相关物质具有通过反应与上述聚氧烷衍生物(1)修饰的结构。此外,本发明的新型多支链聚氧烷衍生物的制备中间体是一种聚氧烷衍生物(A)。其中,A1O和A2O独立地表示具有2至4个碳原子的氧烷基,m表示20至500,n表示15至700,R表示氢原子或具有1至20个碳原子的碳氢基团,X表示与生物相关物质反应性的功能团,X1表示可能被保护的羟基。