Three new glycosides named cynapanosides A (1), B (2), and C (3) which contain a new aglycone, glaucogenin D (10), were isolated from Cynanchum paniculatum, in addition to the known compounds, cynatratoside B (5) and 3β, 14-dihydroxy-14β-pregn-5-en-20-one (13). Their structures were elucidated by spectroscopic and chemical methods. The results led us to propose a structure revision of glaucogenin B (11).
从中获得三种新的糖苷, 名称为 cynapanosides A (1)、B (2) 和 C (3),它们含有一个新的苷元,即 glaucogenin D (10),同时还得到了已知化合物 cynatratoside B (5) 和 3β,14-二羟基-14β-孕-5-
烯-20-
酮 (13)。我们通过光谱和
化学方法阐明了它们的结构。这些结果使我们提出了对 glaucogenin B (11) 结构的修正。