Antisweet Natural Products. XV. Structures of Jegosaponins A-D from Styrax japonica SIEB. et ZUCC.

Kazuko YOSHIKAWA; Hiromichi HIRAI; Masami TANAKA; Shigenobu ARIHARA

doi:10.1248/cpb.48.1093

Kazuko YOSHIKAWA, Hiromichi HIRAI, Masami TANAKA, Shigenobu ARIHARA

著者情報

キーワード: Styrax japonica, jegosaponin, antisweet substance, Styracaceae, deacyl jegosaponin, barringtogenol C

ジャーナルフリー

2000 年 48 巻 7 号 p. 1093-1096

DOI https://doi.org/10.1248/cpb.48.1093

詳細

抄録

From the fresh fruits of Styrax japonica SIEB. et ZUCC., four new triterpenoid glycosides, named jegosaponins A-D (1-4), were isolated. Their structures were determined on the basis of spectroscopic data and chemical evidence. Compounds 1-4 are 3-O-tetraglycosides of barringtogenol C having an acetyl and a tigloyl or a (2Z)-hexenoyl groups at C-21, 22 and 28. The acylated saponins, 1-4, all showed antisweet activity.

責任著者(Corresponding author)

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