Total Synthesis of (−)-Mniopetal E, a Novel Biologically Intriguing Drimane Sesquiterpenoid
作者:Yoshikazu Suzuki、Ryoko Nishimaki、Makoto Ishikawa、Takeshi Murata、Ken-ichi Takao、Kin-ichi Tadano
DOI:10.1021/jo001004p
日期:2000.12.1
We have achieved the total synthesis of (-)-mniopetal E, a drimane sesquiterpenoid which inhibits the reverse transcriptase of human immunodeficiency virus (HIV)-1. Our enantiospecific total synthesis of this target molecule in naturally occurring form commenced with a known 2,3-anhydro-D-arabinitol derivative, which was prepared using the Sharpless asymmetric epoxidation strategy. The key steps of
我们已经完成了(-)-小荆芥E的总合成,这是一种抑制人类免疫缺陷病毒(HIV)-1逆转录酶的drimane倍半萜。我们以天然形式存在的目标分子的对映体特异性全合成始于已知的2,3-脱水-D-阿拉伯糖醇衍生物,该衍生物是使用Sharpless不对称环氧化策略制备的。我们总合成的关键步骤如下:(1)高度立体控制的分子间和分子内Horner-Emmons碳延伸的组合,用于构建束缚1,2,4,9-官能化的nona-5,7- β-碳的二烯部分,(2)如此形成的三烯化合物的立体选择性热分子内Diels-Alder反应,优先提供具有所需pi面选择的内环加合物,