作者:Palle J. Pedersen、Thomas L. Andresen、Mads H. Clausen
DOI:10.1002/ejoc.201200565
日期:2012.10.18
The synthesis of two new α,α-difluoro ester phospholipid conjugates is described and the stability of their liposomal formulations in three different aqueous buffers (pH 4.5, 7.5 and 8.5) has been investigated. The studies confirmed that α,α-difluoro esters are much more prone to hydrolysis when positioned close to the hydrophilic head group of phospholipids than when the functionality is placed in
描述了两种新的 α,α-二氟酯磷脂结合物的合成,并研究了它们的脂质体制剂在三种不同的水性缓冲液(pH 4.5、7.5 和 8.5)中的稳定性。研究证实,与将官能团置于脂质体双层的亲脂部分相比,α,α-二氟酯在靠近磷脂的亲水性头部基团时更容易水解。这一观察结果进一步支持了通过将制剂作为脂质体膜的一部分来保护可水解功能的概念。