Total Synthesis of A Novel Tetracyclic Alkaloid, Cassiarin F from the Flowers of <i>Cassia siamea</i>
作者:Jun Deguchi、Tomoe Hirahara、Shiori Oshimi、Yusuke Hirasawa、Wiwied Ekasari、Osamu Shirota、Toshio Honda、Hiroshi Morita
DOI:10.1021/ol201674a
日期:2011.8.19
A novel alkaloid, cassiarin F (1), which showed potent antiplasmodial activity against Plasmodium falciparum in vitro, was isolated from the flowers of Cassia siamea, and its structure was elucidated on the basis of 2D NMR analyses. A total synthesis of 1 was also achieved by employing the Suzuki coupling constructing biaryl unit, nucleophilic aromatic substitution, and Houben–Hoesch type ring construction
从决明子的花中分离出了一种新型的生物碱,决明子F(1),其在体外对恶性疟原虫具有有效的抗疟原虫活性,并根据2D NMR分析阐明了其结构。通过使用Suzuki偶联构建联芳基单元,亲核芳族取代和Houben-Hoesch型环构建为关键步骤,还实现了1的总合成。