STRUCTURE OF CLAUDIMERIN-A, A NOVEL DIMERIC COUMARIN FROM CITRUS HASSAKU

Yuko TAKEMURA; Toshimi NAKATA; Hiromi UCHIDA; Motoharu JU-ICHI; Keiichiro HATANO; Chihiro ITO; Hiroshi FURUKAWA

doi:10.1248/cpb.41.2061

Yuko TAKEMURA, Toshimi NAKATA, Hiromi UCHIDA, Motoharu JU-ICHI, Keiichiro HATANO, Chihiro ITO, Hiroshi FURUKAWA

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Keywords: coumarin, Citrus hassaku, claudimerin-A, crystal structure, dimer, Rutaceae

JOURNAL FREE ACCESS

1993 Volume 41 Issue 11 Pages 2061-2062

DOI https://doi.org/10.1248/cpb.41.2061

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Abstract

The chemical structure of claudimerin-A (1), a novel dimeric coumarin from roots of Citrus hassaku (Rutaceae), have been elucidated by spectrometric studies and a single crystal X-ray analysis. The structure of 1 consisted of two clausarin (2) units linked symmetrically with the forming of the pyranopyran ring.

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