GYMNEMIC ACID V, VI AND VII FROM GUR-MA, THE LEAVES OF GYMNEMA SYLVESTRE R. BR.

Kazuko YOSHIKAWA; Kayoko AMIMOTO; Shigenobu ARIHARA; Kouji MATSUURA

doi:10.1248/cpb.37.852

Kazuko YOSHIKAWA, Kayoko AMIMOTO, Shigenobu ARIHARA, Kouji MATSUURA

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Keywords: Gymnema sylvestre, Gur-ma, Asclepiadaceae, gymnemic acid V, gymnemic acid VI, gymnemic acid VII, antisweetener, acylated saponin, gymnemagenin, gymnestrogenin

JOURNAL FREE ACCESS

1989 Volume 37 Issue 3 Pages 852-854

DOI https://doi.org/10.1248/cpb.37.852

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Abstract

From the leaves of Gymnema sylvestre were isolated three new saponins named gymnemic acid V (1), VI (2) and VII (3), besides the known saponins gypenoside II, V, XLIII, XLV, XLVII LXXIV and gynosaponin TN-2. Their structures were elucidated on the basis of spectral and chemical evidence. 1 and 2 of the three new saponins had antisweet activity.

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