Constituents of the Roots of Boerhaavia diffusa L. II. : Structure and Stereochemistry of a New Rotenoid, Boeravinone C

Nzunzu LAMI; Shigetoshi KADOTA; Yasuhiro TEZUKA; Tohru KIKUCHI

doi:10.1248/cpb.38.1558

Nzunzu LAMI, Shigetoshi KADOTA, Yasuhiro TEZUKA, Tohru KIKUCHI

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Keywords: Boerhaavia diffusa, Nyctaginaceae, 12a-hydroxyrotenoid, boeravinone C, 2D INADEQUATE, NMR simulation, NOE, ORD

JOURNAL FREE ACCESS

1990 Volume 38 Issue 6 Pages 1558-1562

DOI https://doi.org/10.1248/cpb.38.1558

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Abstract

A new 12a-hydroxyrotenoid, boeravinone C, has been isolated from the roots of Boerhaavia diffusa L. (Nyctaginaceae) and its structure including the absolute configuration was determined based on chemical and spectral evidence. The ¹H-nuclear magnetic resonance of boeravinone C showed unusual splitting patterns due to ABC spin systems. These splitting patterns were analyzed by a simulation method.

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