Solid phase method for synthesis peptide-spacer-lipid conjugates, conjugates synthesized thereby and targeted liposomes containing the same
申请人:DEVELOPMENT CENTER FOR BIOTECHNOLOGY
公开号:US20030229017A1
公开(公告)日:2003-12-11
A solid phase synthesis method for preparing peptide-spacer-lipid conjugates, the peptide-spacer-lipid conjugates synthesized by the method, and liposomes containing the peptide-spacer-lipid conjugates. The present invention provides a convenient solid phase synthesis method for preparing peptide-spacer-lipid conjugates and provides various linkage groups (such as amide group) for conjugating peptide, spacer and lipid, wherein the spacer may comprise PEG. Several advantages can be achieved, such as the synthetic procedure can be simplified, the synthesis process can be set to automation, the purification is easier in each reaction step, and the product losses can be reduced to minimal during synthesis. The present synthesis method is suitable for preparing a wide range of peptide-spacer-lipid conjugates, provides a peptide-spacer-lipid conjugate prepared by the solid phase synthesis method of the present invention, which can be incorporated into a liposome as the targeting moiety for liposomal drug delivery to specific cells, and provides a targeting liposome containing the present peptide-spacer-lipid conjugate.
一种用于制备肽-间隔子-脂质共轭物的固相合成方法,所述方法合成的肽-间隔子-脂质共轭物,以及含有肽-间隔子-脂质共轭物的脂质体。本发明提供了一种便利的固相合成方法,用于制备肽-间隔子-脂质共轭物,并提供了各种连接基团(如酰胺基团)用于连接肽、间隔子和脂质,其中间隔子可以包括PEG。可以实现几项优点,例如合成过程可以简化,合成过程可以设定为自动化,每个反应步骤中的纯化更容易,并且在合成过程中产品损失可以降至最低。本合成方法适用于制备各种肽-间隔子-脂质共轭物,提供了一种由本发明的固相合成方法制备的肽-间隔子-脂质共轭物,可作为靶向单元被纳入脂质体,用于将脂质体药物传递到特定细胞,并提供了含有本肽-间隔子-脂质共轭物的靶向脂质体。