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Two oligostilbenes, cis- and trans-diptoindonesin B, from Dryobalanops oblongifolia
Yana M Syah1, Nanik S Aminah, Euis H Hakim
1Natural Products Chemistry Group, Department of Chemistry, Institut Teknologi Bandung, Jalan Ganesha 10, 40132 Bandung, Indonesia.
Phytochemistry
|August 5, 2003
Abstract:
Two oligostilbenes, cis- and trans-diptoindonesin B, have been isolated from the tree bark of Dryobalanops oblongifolia (Dipterocarpaceae). The structures and relative configurations of both compounds were determined on the basis of spectroscopic evidence, including 2D-NMR spectroscopic analysis.