synthesis. Here we conducted the direct comparison of benzyl and 2-naphthylmethyl (Nap) ethers as permanent hydroxyl protecting groups for the synthesis of KRN7000, as well as the practical synthesis of a biologically active α-GalGSLs PBS-57. This work further revealed the advantages of Nap ether over benzyl ether for permanent hydroxyl protection in the synthesis of α-GalGSLs.
图形摘要由于对海洋衍生的α-半
乳糖鞘脂(α-GalGSL)的
生物学特性的关注,许多工作都集中在其合成的开发上。在这里,我们进行了直接比较作为合成KRN7000的永久羟基保护基的苄基和2-
萘基甲基(Nap)醚,以及对具有
生物活性的α-GalGSLsPBS-57的实际合成。这项工作进一步揭示了在合成α-GalGSLs中,Nap醚优于苄基醚的永久羟基保护作用。