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Studies on the constituents of leguminous plants. XI. The structures of new triterpenoids from Wistaria brachybotrys Sieb. et Zucc.

1989; Pharmaceutical Society of Japan; Volume: 37; Issue: 6 Linguagem: Inglês

10.1248/cpb.37.1550

1347-5223

Takao Konoshima, Mutsuo Kozuka, Mitsumasa Haruna, Kazuo Ito, Takeatsu Kimura,

Plant biochemistry and biosynthesis

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.