Two new resveratrol tetramers from Upuna borneensis.
Phytochemical investigation of an acetone extract of Upuna borneensis (Dipterocarpaceae) resulted in the isolation of two new resveratrol tetramers, upunaphenols O (1) and P (2). The structures were elucidated by spectroscopic analysis including NMR experiments.
Laboratory of Pharmacognosy, Gifu Pharmaceutical University, Gifu, Japan. teito@gifu-pu.ac.jp
Tetsuro
T
Ito
Naohito
N
Abe
Zulfiqar
Z
Ali
Masayoshi
M
Oyama
Toshiyuki
T
Tanaka
Ryuichi
R
Sawa
Yoshikazu
Y
Takahashi
Jin
J
Murata
Dedy
D
Darnaedi
Munekazu
M
Iinuma
D001572:Benzofurans / Q000737:chemistry* / Q000302:isolation & purification; D053958:Dipterocarpaceae; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D000077185:Resveratrol; D013267:Stilbenes / Q000737:chemistry* / Q000302:isolation & purification*
D001572:Benzofurans; D010936:Plant Extracts; D013267:Stilbenes; C540956:upunaphenol O; C540955:upunaphenol P; D000077185:Resveratrol