Hydroquinone diglycoside acyl esters from the stems of Glycosmis pentaphylla

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• 作者：Junsong Wang ; Yingtong Di ; Xianwen Yang ; Shunlin Li ; Yuehu Wang and Xiaojiang Hao
• 关键词：Glycosmis pentaphylla ; Rutaceae ; Glypentosides A– ; C ; Hydroquinone glycosides ; Acyl esters ; Apiosyl-(1 → ; 2)-glucosides
• 刊名：Phytochemistry
• 出版年：2006
• 期刊代码：85_00319422
• 类别：ch
• 出版时间：March 2006
• 卷：67
• 期：5
• 页码：486-491
• 文件大小：150 K

摘要

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)-β-d-apiofuranosyl-(1 → 2)-β-d-glucopyranoside] (1) and 4-demethylantiarol 4-O-[(3-methoxy-4-hydroxy-benzoyl)-β-d-apiofuranosyl-(1 → 2)-β-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.