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苦玄参(Pieria fel-tarrae Lour)提取物的 B 部份经酸水解后,分离出苦玄参甙元Ⅳ。根据它的谱学数据及化学反应证明其具有4的结构。同时还阐明了1和4的边链降解产物(8)的结构。
After acid hydrolysis of the B part of the extract of Pieria fel-tarrae Lour, Bitter Ginseng was isolated. According to its spectroscopic data and chemical reaction, it was proved to have a structure of 4. At the same time, the structures of the side chain degradation products (8) of 1 and 4 were also elucidated.