Structure of Bisosthenon, a Novel Dimeric Coumarin from Citrus Plants

Chihiro ITO; Toyoko MIZUNO; Shiho TANAHASHI; Hiroshi FURUKAWA; Motoharu JU-ICHI; Mami INOUE; Miki MURAGUCHI; Mitsuo OMURA; Donald R. MCPHAIL; Andrew T. MCPHAIL

doi:10.1248/cpb.38.2102

Chihiro ITO, Toyoko MIZUNO, Shiho TANAHASHI, Hiroshi FURUKAWA, Motoharu JU-ICHI, Mami INOUE, Miki MURAGUCHI, Mitsuo OMURA, Donald R. MCPHAIL, Andrew T. MCPHAIL

Author information

Chihiro ITO
Toyoko MIZUNO
Shiho TANAHASHI
Hiroshi FURUKAWA
Motoharu JU-ICHI
Mami INOUE
Miki MURAGUCHI
Mitsuo OMURA
Donald R. MCPHAIL
Andrew T. MCPHAIL
Author's Organization：
Faculty of Pharmacy, Meijo University
Faculty of Pharmacy, Meijo University
Faculty of Pharmacy, Meijo University
Faculty of Pharmacy, Meijo University
Faculty of Pharmaceutical Sciences, Mukogawa Women's University
Faculty of Pharmaceutical Sciences, Mukogawa Women's University
Faculty of Pharmaceutical Sciences, Mukogawa Women's University
Okitsu Branch, Fruit Tree Research Station, Ministry of Agriculture, Forestry and Fisheries
Department of Chemistry, Paul M. Gross Chemical Laboratory, Duke University
Department of Chemistry, Paul M. Gross Chemical Laboratory, Duke University

Keywords: Citrus, Rutaceae, coumarin, bisosthenon, osthenon, photodimerization, cyclobutane, dimer, X-ray

JOURNAL FREE ACCESS

1990 Volume 38 Issue 8 Pages 2102-2107

DOI https://doi.org/10.1248/cpb.38.2102

Details

Abstract

Bisosthenon (1), a new dimeric coumarin, was isolated from the roots of some Citrus plants (Rutaceae), and the structure was elucidated to be 1, correspoding to a head-to-head dimer of osthenon (4), which was previously obtained from Citrus plants. The photodimerization of 4 gave 1 as well as two other dimeric products, 2 and 3.

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