Two New Dimeric Coumarins Isolated from Murraya exotica

Naoko Negi; Asae Ochi; Masumi Kurosawa; Kaori Ushijima; Yoshimi Kitaguchi; Eri Kusakabe; Fumi Okasho; Tetsutaro Kimachi; Naoko Teshima; Motoharu Ju-ichi; Ahmad Muhamad Abou-Douh; Chihiro Ito; Hiroshi Furukawa

doi:10.1248/cpb.53.1180

Notes

Two New Dimeric Coumarins Isolated from Murraya exotica

Naoko Negi, Asae Ochi, Masumi Kurosawa, Kaori Ushijima, Yoshimi Kitaguchi, Eri Kusakabe, Fumi Okasho, Tetsutaro Kimachi, Naoko Teshima, Motoharu Ju-ichi, Ahmad Muhamad Abou-Douh, Chihiro Ito, Hiroshi Furukawa

Author information

Keywords: Murraya exotica, bicoumarin, bismurrangatin, murramarin A

JOURNAL FREE ACCESS

2005 Volume 53 Issue 9 Pages 1180-1182

DOI https://doi.org/10.1248/cpb.53.1180

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Abstract

Bismurrangatin and murramarin A, two new coumarins, were isolated from the vegetative branches of Murraya exotica. Murramarin A is a rare type of bicoumarin that connects two coumarin moieties by orthoester structure. The structures were elucidated based on spectroscopic methods, especially by 2D-NMR experiments.

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