1992 年 40 巻 11 号 p. 2981-2983
Two new steroidal glycosides, scopolosides I (1) and II (2), together with funkioside D (3) were obtained from the methanolic extract of the fresh underground parts of Scopolia japonica MAXIM. (Solanaceae) collected in Hiroshima prefecture, and the chemical structures of 1 and 2 were characterized to be (25R)-spirost-5-ene-3β, 15α, 23α-triol, named scopologenin (4), 3-O-β-D-glucopyranosyl-(1→2)-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside and scopologenin 3-O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside, respectively, by spectroscopic and chemical evidence.
