作者:Gerhard K. E. Scriba
DOI:10.1002/ardp.19953280313
日期:——
Testosterone‐lipid conjugates were obtained by covalent binding of the drug to 1,3‐dipalmitoylglycerol via succinic acid to 4‐(1,3‐dipalmitoyl‐2‐glyceryl)butyric acid and to 3‐palmitoyloxy‐2‐palmitoyloxymethylpropionic acid. In contrast to the corresponding bis‐deacyl derivatives, the lipids were not significantly hydrolyzed in aqueous buffers and in plasma. Incubation with pancreatic lipase yielded
睾酮-脂质偶联物是通过将药物与 1,3-二棕榈酰甘油通过琥珀酸与 4-(1,3-二棕榈酰-2-甘油)丁酸和 3-棕榈酰氧基-2-棕榈酰氧基甲基丙酸共价结合而获得的。与相应的双脱酰基衍生物相比,脂质在水性缓冲液和血浆中没有显着水解。与胰脂肪酶孵育主要产生双十酰基化合物,其与甘油单酯相当,随后缓慢释放睾酮。结论是脂质缀合物是胰脂肪酶的底物。然而,由于空间位阻,药物释放非常缓慢。