Shimokawa Yoko, Hirasawa Yusuke, Kaneda Toshio, Hadi A Hamid A, Morita Hiroshi
Faculty of Pharmaceutical Sciences, Hoshi University, Shinagawa-ku, Tokyo, Japan.
Chem Pharm Bull (Tokyo). 2012;60(6):790-2. doi: 10.1248/cpb.60.790.
Cuspidan A (1), a new stilbene sestermer consisting of a resveratrol, an oxyresveratrol, and a 3,5-dihydroxyphenylmethanol constituent units and cuspidan B (2), a new tri-cyclic stilbene monomer were isolated from the bark of Gnetum cuspidatum. The structures and configurations of 1 and 2 were elucidated on the basis of 2D-NMR correlations.
从尖叶乌毛蕨的树皮中分离出了由白藜芦醇、氧化白藜芦醇和3,5 - 二羟基苯甲醇组成单元构成的新的芪类六聚体——尖叶乌毛蕨素A(1),以及新的三环芪类单体——尖叶乌毛蕨素B(2)。基于二维核磁共振相关技术阐明了1和2的结构及构型。