Stilbenoids isolated from stem bark of Shorea hemsleyana.
Two new stilbene glucosides [(+)-alpha-viniferin 13b-O-beta-glucopyranoside and resveratrol 12-C-beta-glucopyranoside] and two new resveratrol oligomers, hemsleyanols A and B, were isolated from the bark of Shorea hemsleyana along with four known resveratrol oligomers. The structures of the isolates, including the relative configurations, were established by spectroscopic data involving long-range coupling and nuclear Overhauser effect experiments.
Gifu Prefectural Institute of Health and Environmental Sciences, Kakamigahara, Japan.
T
T
Ito
T
T
Tanaka
Y
Y
Ido
K I
KI
Nakaya
M
M
Iinuma
S
S
Riswan
D009682:Magnetic Resonance Spectroscopy; D019660:Malvaceae / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry; D000077185:Resveratrol; D013267:Stilbenes / Q000737:chemistry / Q000302:isolation & purification*
D013267:Stilbenes; D000077185:Resveratrol