Antisweet Natural Products. X. Structures of Sitakisosides I-V from Stephanotis lutchuensis KOIDZ. var. japonica

Kazuko YOSHIKAWA; Hitomi TANINAKA; Yukiko KAN; Shigenobu ARIHARA

doi:10.1248/cpb.42.2023

Kazuko YOSHIKAWA, Hitomi TANINAKA, Yukiko KAN, Shigenobu ARIHARA

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Keywords: Stephanotis lutchuensis var. japonica, Asclepiadaceae, sitakisoside, antisweet substance, N-methylanthranilic acid, chichipegenin

JOURNAL FREE ACCESS

1994 Volume 42 Issue 10 Pages 2023-2027

DOI https://doi.org/10.1248/cpb.42.2023

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Abstract

From the fresh stem of Stephanotis lutchuensis var.japonica, we have isolated five new oleane glycosides named sitakisosides I-V (1-5). Their structures were determined on the basis of spectroscopic data and chemical evidence. Sitakisoside V showed the strongest antisweet activity among sitakisosides I-V.

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