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Paper | Special issue | Vol 30, No. 2, 1990, pp.897-904
Published online, 1st January, 1970
DOI: 10.3987/COM-89-S78
Studies on the Constituents of Beesia calthaefolia, and Souliea vaginata. III. Beesioside IV, a Cyclolampstanol Xyloside from the Rhizomes of B. calthaefolia and S. vaginata

Nobuko Sakurai, Teruo Goto, Masahiro Nagai, Takao Inoue,* and Peigen Xiao

*Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan


A new triterpenol xyloside, beesioside IV, an amorphous powder, [α]D-11.1°, C37H58O11·3/2H2O from the dried rhizomes of Beesia calthaefolis Maxim. and Souliea vaginata (Maxim.) Franch. (both Ranunculaceas) was identified as (20S,24S)-15α-acetoxy-16β,24;20,24-diepoxy-9,19-cyclolanostane-3β,12α,25-triol 3-O-β-D-xylopyranoside on the basis of chemical and physicochemical evidence.