Studies on the constituents of asclepiadaceae plants. LXVI The structures of three new glycosides, cynapanosides A, B, and C, from the Chinese drug "Xu-Chang-Qing," Cynanchum paniculatum Kitagawa.
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。
Yoshii etal.,E., Chemical and pharmaceutical bulletin, 1972, vol. 20, p. 1827 - 1829
作者:Yoshii etal.,E.
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Khare, Naveen K.; Deepak, Desh; Khare, Anakshi, Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 2008, vol. 47, # 11, p. 1744 - 1747