作者:Mary‐Ann J. Siegert、Caroline H. Knittel、Roderich D. Süssmuth
DOI:10.1002/anie.201914620
日期:2020.3.27
α-amanitin from mushrooms as the sole source severely restricts compound supply as well as further investigations, as structure-activity relationship (SAR) studies. Based on a straightforward access to the non-proteinogenic amino acid dihydroxyisoleucine, we herein present a robust total synthesis of α-amanitin providing options for production at larger scale as well as future structural diversifications.
有毒的双环八肽α-amanitin大多见于伞形毒蕈属(Amanita)的不同物种中,其中最有名的成员之一是死帽(Amanita phalloides)。由于其对RNA聚合酶II的高选择性抑制作用,这直接与其高毒性(特别是对肝细胞)有关,因此α-amanitin作为抗体-药物偶联物(ADC)的毒素成分在癌症研究中受到了越来越多的关注。此外,从蘑菇中分离α-amanitin作为唯一来源严重限制了化合物的供应以及进一步的研究,如结构-活性关系(SAR)研究。基于直接获取非蛋白质氨基酸二羟基异亮氨酸的信息,