Siti Aisyah, Yana M. Syah, Euis H. Hakim, Lia D. Juliawaty, Jalifah Latip
Two new ketonic resveratrol tetramers, shoreaplatyclaphenols A (1) and B (2), two known resveratrol tetramers (grandiphenol B and hopeaphenol A), and a known trimer resveratrol (α-viniferin), have been isolated from an acetone extract of the tree bark of Shorea platyclados (Dipterocarpaceae). Structure elucidation, including relative configurations, of the new compounds was determined on the basis of spectroscopic evidence, mainly with NMR and mass spectral data. Biogenetic relationship of the resveratrol tetramers isolated in S. platyclados and their chemotaxonomic significance is briefly discussed. © 2014, The Natural Products Journal, All rights Reserved.
Department of Chemistry, Education Univerisity of Indonesia, Jalan Setiabudi 229, Bandung, 40154, Indonesia; Natural Products Chemistry Research Group, Organic Chemistry Division, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung, 40132, Indonesia; School of Chemical Sciences and Food Technology, Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, 43600, Selangor, Malaysia
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