The present invention relates to triterpene glycoside saponin-derived adjuvants, syntheses thereof, intermediates thereto, and uses thereof. QS-7 is a potent immuno-adjuvant that is significantly less toxic than QS-21, a related saponin that is currently the favored adjuvant in anticancer and antiviral vaccines. Tedious isolation and purification protocols have hindered the clinical development of QS-7. A novel semi-synthetic method is provided wherein a hydrolyzed prosapogenin mixture is used to synthesize QS-7, QS-21, and related analogs, greatly facilitating access to QS-7 and QS-21 analogs for preclinical and clinical evaluation.
本发明涉及三萜糖苷
皂甙衍生佐剂、其合成方法、中间体及其用途。QS-7 是一种强效免疫佐剂,其毒性明显低于 QS-21,后者是一种相关的
皂苷,目前是抗癌和抗病毒疫苗的首选佐剂。繁琐的分离和纯化程序阻碍了 QS-7 的临床开发。本研究提供了一种新颖的半合成方法,其中使用了一种
水解原
皂甙混合物来合成 QS-7、QS-21 和相关类似物,从而大大方便了临床前和临床评估对 QS-7 和 QS-21 类似物的获取。