8-O-Methyldioncophyllinol B and revised structures of other 7, 6′-coupled naphthylisoquinoline alkaloids from Triphyophyllum peltatum (Dioncophyllaceae)
作者:Gerhard Bringmann、Christian Günther、Wael Saeb、Jan Mies、Reto Brun、Laurent Aké Assi
DOI:10.1016/s0031-9422(00)00107-2
日期:2000.6
structural elucidation of a new naphthylisoquinoline alkaloid, 8-O-methyldioncophyllinol B, from Triphyophyllum peltatum (Hutch. et Dalz.) Airy Shaw (Dioncophyllaceae) is described, together with the revised structures of other 'B-type' compounds previously misidentified as dioncophylline D, dioncophyllinol D, and 8-O-methyldioncophylline D. All of the presently described structures are 7,6'-coupled and thus
描述了从 Triphyophyllum peltatum (Hutch. et Dalz.) Airy Shaw (Dioncophyllaceae) 中分离和结构解析新的萘基异喹啉生物碱 8-O-甲基二酚 B,以及之前其他“B 型”化合物的修订结构被误认为是二羟苯乙酮 D、二羟甲酚 D 和 8-O-甲基二甲香豆碱 D。目前描述的所有结构都是 7,6'-偶联的,因此必须被称为“B 型”萘基异喹啉生物碱。这与最初定义的“D 型”结构形成对比,后者是 7,8'-偶联的,由双酚茶碱 D 的全合成证实。这些天然和合成萘基异喹啉中的一些被发现显示出良好的体外抗疟原虫活性。