Resveratrol oligomers and their O-glucosides from Cotylelobium lanceolatum.
Three new resveratrol oligomers, cotylelophenol C (1) (resveratrol tetramer) and cotylelosides A (2) and B (3) (O-glucosides of resveratrol trimer), together with four known glucosides of resveratrol oligomers (vaticasides A, B, C, D) and piceid, were isolated from an acetone soluble part of stem of Cotylelobium lanceolatum (Dipterocarpaceae). The structures of new compounds were determined by spectral data analysis. The characteristic properties observed in the NMR spectra of 1 were also discussed.
Ito
Tetsuro
T
Gifu Prefectural Institute of Health and Environmental Sciences, Naka-fudogaoka, Kakamigahara, Japan. zvn00510@nifty.com
Ali
Zulfiqar
Z
Furusawa
Miyuki
M
Iliya
Ibrahim
I
Tanaka
Toshiyuki
T
Nakaya
Ken-Ichi
K
Murata
Jin
J
Darnaedi
Dedy
D
Iinuma
Munekazu
M
D020448:Ericales / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D000077185:Resveratrol; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet; D013267:Stilbenes / Q000737:chemistry* / Q000302:isolation & purification; D013329:Structure-Activity Relationship
D005960:Glucosides; D013267:Stilbenes; D000077185:Resveratrol