Hydroquinone diglycoside acyl esters from the stems of Glycosmis pentaphylla |
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Authors: | Wang Junsong Di Yingtong Yang Xianwen Li Shunlin Wang Yuehu Hao Xiaojiang |
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Affiliation: | 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. |
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Abstract: | 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. |
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Keywords: | Glycosmis pentaphylla Rutaceae Glypentosides A-C Hydroquinone glycosides Acyl esters Apiosyl-(1 → 2)-glucosides |
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