Chemical constituents in the leaves of Vateria indica |
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Authors: | Ito Tetsuro Masuda Yuichi Abe Naohito Oyama Masayoshi Sawa Ryuichi Takahashi Yoshikazu Chelladurai Veliah Iinuma Munekazu |
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Affiliation: | Laboratory of Pharmacognosy, Gifu Pharmaceutical University, Japan. teito@gifu-pu.ac.jp |
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Abstract: | Comprehensive re-investigation of the chemical constituents in the leaves of Vateria indica (Dipterocarpaceae) resulted in the isolation of a novel resveratrol dimeric dimer having a C(2)-symmetric structure, vateriaphenol F (1), and two new O-glucosides of resveratrol oligomers, vateriosides A (2) (resveratrol dimer) and B (4) (resveratrol tetramer), along with a new natural compound (3) and 33 known compounds including 26 resveratrol derivatives. The absolute structures were elucidated by spectroscopic analysis, including two dimensional NMR and circular dichroism (CD) spectra. |
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