申请人:Wu Nian
公开号:US20120232169A1
公开(公告)日:2012-09-13
(PEG)-lipid conjugates and methods of preparation are disclosed herein. Methods of preparation may involve stepwise addition of small PEG oligomers to a glycerol backbone until a desired chain size is attained. Polymers resulting from the syntheses may be highly monodisperse. The resulting polymers may comprise branched polyethyleneglycol (PEG)-lipid conjugates. The present disclosure may provide several advantages such as simplified synthesis, high product yield and low cost for starting materials. The present synthesis method may be suitable for preparing a wide range of conjugates such as PEG lipid conjugates having a glycerol-like central backbone covalently attached to two or more monodisperse PEG chains and a lipid comprising a range of diesters made from fatty acids or bile acids.
本文揭示了(PEG)-脂质共轭物及其制备方法。制备方法可能涉及将小的PEG寡聚体逐步添加到甘油骨架中,直到达到所需的链长。合成产物可能具有高度单分散性。所得的聚合物可能包括分支的聚乙二醇(PEG)-脂质共轭物。本公开可能提供多种优点,如简化合成、高产率和低起始材料成本。本合成方法可能适用于制备各种共轭物,如具有类甘油中心骨架的PEG脂质共轭物,其与两个或更多单分散PEG链和脂质共价连接,并包含一系列由脂肪酸或胆汁酸制成的二酯。