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Two New Prenylated Stilbenes with an Irregular Sesquiterpenyl Side Chain from Propolis from Fiji Islands Boryana Trusheva, Kristina Stancheva, Narendra Gajbhiye, Rosa Dimitrova, Milena Popova, Rajneeta Saraf and Vassya Bankova Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 9, 1113 Sofia, Bulgaria Directorate of Medicinal and Aromatic Plants Research, Indian Council of Agricultural Research, 387 310 Boriavi, Anand, Gujarat, India The University of the South Pacific, School of Biological and Chemical Sciences, P.O. Box 1425, Suva, Fiji Abstract: Two new prenylated stilbenes with an irregular sesquiterpenyl side chain, solomonin B (1) and solomonin C (2), together with four known compounds, glyasperin A (3), isolated for the first time from propolis, kumatakenin (4), macarangin (5) and mangiferolic acid (6) were isolated from ethanol extract of propolis from Fiji islands. The compounds structures were determined based on their spectral data analysis (1D- and 2D NMR, UV and HREIMS) and comparison with literature data. The chemical composition of propolis from Fiji islands was determined for the first time. Keywords: Fijian propolis; prenylated stilbenes; spectroscopic analyses; GC/MS . © 2016 ACG Publications. All rights reserved.
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