A new resveratrol tetramer, named diptoindonesin E, was isolated from the acetone extract of the tree bark of Dipterocarpus hasseltii, together with five known resveratrol oligomers (-)-epsilon-viniferin, laevifonol, (-)-alpha-viniferin, vaticanol B, (-)-hopeaphenol, and a coumarin, scopoletin. The structures of these compounds were determined from spectroscopic evidence. Cytotoxicity test of the isolated compounds showed that hopeaphenol strongly inhibited murine leukemia P-388 cells. (c) 2006 Elsevier B.V. All rights reserved.
Muhtadi, N. V., Hakim, E. H., Juliawaty, L. D., Syah, Y. M., Achmad, S. A., Latip, J., & Ghisalberti, E. (2006). Cytoxic resveratrol oligomers from the tree bark of Dipterocarpus hasseltii. Fitoterapia, 77(7-8), 550-555. https://doi.org/10.1016/j.fitote.2006.07.004