Four new iridoids, rehmaglutins A, B, C, and D, were isolated from Chinese Rehmanniae Radix, the dried root of Rehmannia glutinosa Li__=b__=o__=s__=c__=h__=. [Kan-jio (in Japanese) from China]. The absolute stereostructures of rehmaglutins A (2__∼), B (3__∼), and D (4__∼) were elucidated on the basis of chemical and physicochemical evidence which included the application of the benzoate chirality method.
从生地黄中分离出了四种新的虹苷类化合物,即生
地黄苷 A、B、C 和 D。根据
化学和物理
化学证据,包括
苯甲酸手性法的应用,阐明了
地黄苷 A(2__∼)、B(3__∼)和 D(4__∼)的绝对立体结构。