Total Synthesis and Antitrypanosomal Activity of Janadolide and Simplified Analogues
作者:Jonathan H. Chung、Arthur H. Tang、Kieran Geraghty、Leo Corcilius、Marcel Kaiser、Richard J. Payne
DOI:10.1021/acs.orglett.0c00840
日期:2020.4.17
Herein, we describe the total synthesis of janadolide, along with eight simplified analogues, via an efficient solid-phase strategy. Crucial to the synthesis of the natural product was the construction of a key polyketide fragment via an enantioselective (−)-B-chlorodiisopinocampheylborane-mediated reduction and a B-alkyl Suzuki reaction. Janadolide and the simplified analogues exhibited antitrypanosomal
Janadolide是从海洋蓝藻Okeania sp分离出的一种环状二肽天然产物。在这里,我们通过有效的固相策略描述了janadolide的总合成以及八个简化的类似物。天然产物的合成至关重要的是通过对映选择性(-)- B-氯二异opinocampheylborane介导的还原反应和B-烷基铃木反应来构建关键的聚酮化合物片段。Janadolide和简化的类似物对病原性布氏锥虫罗得氏菌和克氏锥虫具有抗锥虫活性。