Studies on the Constituents of Leguminous Plants. XI. : The Structures of New Triterpenoids from Wistaria brachybotrys SIEB. et ZUCC.

Takao KONOSHIMA; Mutsuo KOZUKA; Mitsumasa HARUNA; Kazuo ITO; Takeatsu KIMURA

doi:10.1248/cpb.37.1550

Takao KONOSHIMA, Mutsuo KOZUKA, Mitsumasa HARUNA, Kazuo ITO, Takeatsu KIMURA

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Keywords: triterpene, 22-oxo-3β, 24, 30-trihydroxyolean-12-ene, 3β, 22β, 24, 30-tetrahydroxyolean-12-ene, wistariasapogenol A, wistariasapogenol B, Wistaria brachybotrys, Leguminosae, 2D-NMR, difference NOE

JOURNAL FREE ACCESS

1989 Volume 37 Issue 6 Pages 1550-1553

DOI https://doi.org/10.1248/cpb.37.1550

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Abstract

Two new triterpenoids (wistariasapogenols A and B) were obrained from the knots of Wistaria brachybotrys (Leguminosae), and characterized as 22-oxo-3β, 24, 30-trihydroxyolean-12-ene (1) and 3β, 22β, 24, 30-tetrahydroxyolean-12-ene (8) by analysis of the two-dimensional nuclear magnetic resonance spectra (¹H-¹H correlation spectroscopy (COSY), ¹H-¹³C COSY and ¹H-¹³C long-range COSY) and the difference nuclear Overhauser effect spectra.

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