Enantio- and Diastereoselective Total Synthesis of EI-1941−1, −2, and −3, Inhibitors of Interleukin-1β Converting Enzyme, and Biological Properties of Their Derivatives
作者:Mitsuru Shoji、Takao Uno、Hideaki Kakeya、Rie Onose、Isamu Shiina、Hiroyuki Osada、Yujiro Hayashi
DOI:10.1021/jo0516436
日期:2005.11.1
The first asymmetric total synthesis of EI-1941−1, −2, and −3, inhibitors of the interleukin-1β converting enzyme (ICE), has been accomplished, starting from a chiral epoxy iodoquinone 11, a key intermediate in our total synthesis of epoxyquinols A and B. Despite a failure to synthesize the inhibitors by our postulated biosynthetic route, we were able to diastereoselectively synthesize them via an
EI-1941-1,-2和-3(白介素-1β转化酶(ICE)抑制剂)的第一个不对称总合成已从手性环氧碘醌11开始,它是我们总合成中的关键中间体尽管未能通过我们假定的生物合成途径合成抑制剂,但我们仍能够通过分子内羧基palpalpalation非对映选择性地合成它们,关键步骤是6-内环化模式,然后消除β-氢化物。对EI-1941-1,-2和-3及其衍生物的生物学特性的研究表明,它们在培养的细胞系统中是有效且有效的ICE抑制剂,其细胞毒性比EI-1941-1和-2的细胞毒性小。