Hydroquinone diglycoside acyl esters from the stems of Glycosmis pentaphylla.
Four hydroquinone diglycoside acyl esters, glypentosides A-C (1-3) and seguinoside F (4), were isolated from the stems of Glycosmis pentaphylla. Glypentosides A-B (1-2) were identified as compounds and designated as methoxyquinol 4-O-[(5-O-trans-p-coumaroyl)-beta-d-apiofuranosyl-(1-->2)-beta-d-glucopyranoside] (1) and 4-demethylantiarol 4-O-[(3-methoxy-4-hydroxy-benzoyl)-beta-d-apiofuranosyl-(1-->2)-beta-d-glucopyranoside] (2). Glypentoside C (3) is a hydroquinone diglycoside acyl ester with a neolignan moiety in the acyl unit. Their structures were elucidated by the combination of one- and two-dimensional NMR analysis, mass spectrometry and chemical evidences.
Wang
Junsong
J
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Heilong tan, Kunming 650204, PR China.
Di
Yingtong
Y
Yang
Xianwen
X
Li
Shunlin
S
Wang
Yuehu
Y
Hao
Xiaojiang
X
D004952:Esters / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D006873:Hydroquinones / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry*; D027821:Rutaceae / Q000737:chemistry*
D004952:Esters; D006027:Glycosides; D006873:Hydroquinones