Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Minor Cucurbitane-Glycosides from Fruits of Siraitia grosvenori (Cucurbitaceae)
Kazuhiro MATSUMOTORyoji KASAIKazuhiro OHTANIOsamu TANAKA
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1990 Volume 38 Issue 7 Pages 2030-2032

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Abstract

From fruits of Siraitia grosvenori, a Chinese medicinal plant, a new minor glycoside and four known minor cucurbitane glycosides, siamenoside I (sweet), 11-oxo-mogroside V (sweet), and mogrosides IIE and IIIE (both tasteless) were isolated together with mogrosides IV and V (both sweet) previously isolated from this fruit by Arihara et al. Structure of the new testeless glycoside called mogroside III was elucidated as 3-O-β-D-glucopyranosyl- 24-O-β-gentiobiosyl-mogrol. The relative sweetness of siamenoside I to sucrose was estimated ×563, making this the sweetest compound among the cucurbitane-glycosides so far isolated. The structure-taste relationship of cucurbitane-glycosides is also described.

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© The Pharmaceutical Society of Japan
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