Berchemolide, a novel dimeric vanillic acid glucoside from Berchemia racemosa.
A new phenol glycoside named berchemolide was isolated together with (+)-catechin and (-)-epicatechin (as acetates), from the stems of Berchemia racemosa Sieb. et Zucc. (Rhamnaceae). The structure of berchemolide, having a dimeric dilactone structure with a 22-membered ring, was determined on the basis of spectral and chemical investigations. The conformation of berchemolide was calculated by MNDO (modified neglect of diatomic overlap).
Sakurai
N
N
Faculty of Pharmaceutical Sciences, Hoshi University, Tokyo, Japan.
Kobayashi
M
M
Shigihara
A
A
Inoue
T
T
D005960:Glucosides / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry* / Q000302:isolation & purification; D010946:Plants, Medicinal; D014641:Vanillic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification
D005960:Glucosides; D010936:Plant Extracts; C076707:berchemolide; D014641:Vanillic Acid