Physagulin C, a New Withanolide from Physalis angulata L.

Kazushi SHINGU; Nobuhiro MARUBAYASHI; Ikuhiko UEDA; Shoji YAHARA; Toshihiro NOHARA

doi:10.1248/cpb.39.1591

Kazushi SHINGU, Nobuhiro MARUBAYASHI, Ikuhiko UEDA, Shoji YAHARA, Toshihiro NOHARA

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Keywords: Physalis angulata, Solanaceae, withanolide, X-ray analysis, physagulin C

JOURNAL FREE ACCESS

1991 Volume 39 Issue 6 Pages 1591-1593

DOI https://doi.org/10.1248/cpb.39.1591

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Abstract

A new withanolide, physagulin C was isolated from the methanolic extract of the fresh leaves and stems of Physalis angulata L. (Solanaceae) and the structure was determined to be (20S, 22R)-15α-acetoxy-5β(6), 16β(17)-diepoxy-4β, 14β-dihydroxy-1-oxo-witha-2, 24-trienolide by spectroscopic means and X-ray analysis.

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