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Molecules 2016, 21(11), 1430;

Two New Stilbenoids from the Aerial Parts of Arundina graminifolia (Orchidaceae)

Laboratory of Pharmacognosy and Bioactive Natural Products, Faculty of Pharmacy, Strasbourg University, Illkirch-Graffenstaden 67400, France
GESVAB Group, Oenology Research Unit, EA 4577, USC 1366 INRA, ISVV, Faculty of Pharmacy, Bordeaux University, Villenave d’Ornon 33140, France
Laboratoire Insulaire du Vivant et de l’Environnement, EA 4243, New-Caledonia University, BP R4, Noumea CEDEX 98851, New Caledonia
Spectropôle, FR1739, Aix-Marseille University, Campus de St Jerome-Service 511, Marseille 13397, France
Louis Vuitton Moët et Hennessy Recherche, 185 avenue de Verdun, St Jean de Braye 45800, France
Author to whom correspondence should be addressed.
Academic Editor: Derek J. McPhee
Received: 29 August 2016 / Revised: 21 October 2016 / Accepted: 23 October 2016 / Published: 27 October 2016
(This article belongs to the Section Natural Products Chemistry)
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Two new phenanthrene derivatives, a phenanthrenequinone named arundiquinone (1) and a 9,10-dihydrophenanthrene named arundigramin (2) together with a known lignin dimer (3) and seven known stilbenoids (410) were isolated from the aerial parts of the Asian orchid Arundina graminifolia. The structures of the isolated compounds were elucidated by spectroscopic methods, including extensive 1D, 2D NMR (heteronuclear single quantum coherence (HSQC), heteronuclear multiple-bond correlation spectroscopy (HMBC), and HR-ESI-MS techniques, as well as comparison with respective literature reports. The cytoprotective activity of the isolated compounds were evaluated for their ability to reduce beta amyloid induced toxicity on undifferentiated PC12 cells. Compound 8 showed moderate cytoprotective activity at 0.5 µmol/L (71% of cell viability) while the other compounds showed no significant activity at the highest concentration tested. View Full-Text
Keywords: Arundina graminifolia; Orchidaceae; phenanthrene derivatives; arundiquinone; arundigramin Arundina graminifolia; Orchidaceae; phenanthrene derivatives; arundiquinone; arundigramin

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Auberon, F.; Olatunji, O.J.; Krisa, S.; Antheaume, C.; Herbette, G.; Bonté, F.; Mérillon, J.-M.; Lobstein, A. Two New Stilbenoids from the Aerial Parts of Arundina graminifolia (Orchidaceae). Molecules 2016, 21, 1430.

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