Following the structure elucidation of licorice-saponins A3, B2, C2, D3, and E2, the structures of five more new oleanene-triterpene oligoglycosides named licorice-saponins F3 (<1>__∼), G2 (<5>__∼), H2 (<7>__∼), J2 ((10)___∼), and K2 ((12)___∼), concomitantly isolated from the root of Glycyrrhiza uralensis Fischer= (Tohoku-kanzo in Japanese), have been determined on the basis of chemical and physicochemical evidence. During the process, a facile chemical conversion method from olean-12-ene or olean-12-en-11-one oligoglycosides to an olean-11, 13-diene oligoglycoside, has been found.
继阐明
甘草皂苷 A3、B2、C2、D3 和 E2 的结构之后,又从甘草根中分离出五种新的齐墩果烯-三
萜类低聚糖苷,分别命名为
甘草皂苷 F3 (<1>__∼)、G2 (<5>__∼)、H2 (<7>__∼)、J2 ((10)__∼)和 K2 ((12)__∼)、根据
化学和物理
化学证据,确定了从 Glycyrrhiza uralensis Fischer=(日文为 Tohoku-kanzo)的根中同时分离出的 J2((10)___∼)和 K2((12)___∼)。在此过程中,发现了一种从齐墩果-12-烯或齐墩果-12-烯-11-酮
寡糖苷到齐墩果-11、13-二烯
寡糖苷的简便
化学转化方法。