南瓜种子中新酚苷的结构

Structures of new phenolic glycosides from the seeds of Cucurbita moschata.

作者信息

Li Fa-Sheng, Xu Jing, Dou De-Qiang, Chi Xiao-Feng, Kang Ting-Guo, Kuang Hai Xue

机构信息

Department of Chemistry, Dalian Medical University, 9 Western Section, Lvshun South Road, Dalian, 116044, P.R. China.

出版信息

Nat Prod Commun. 2009 Apr;4(4):511-2.

PMID:19475995

Abstract

A new phenolic glycoside and three known compounds were isolated from the seeds of Cucurbita moschata. The structures of the new compound was elucidated as phenylcarbinyl 5-O-(4-hydroxy)benzoyl-beta-D-apiofuranosyl (1-->2)-beta-D-glucopyranoside on the basis of spectroscopic analysis and chemical evidence. Three known compounds were identified as 1-O-benzyl[5-O-benzoyl-beta-D-apiofuranosyl(1-->2)]-beta-D-glucopyranoside 2, cucurbitosides C 3 and A 4, by comparison of the spectral data with reported data. Compound 2 was isolated from this plant for the first time.

摘要

从南瓜种子中分离出一种新的酚苷和三种已知化合物。通过光谱分析和化学证据，将新化合物的结构确认为苯甲基 5 - O -（4 - 羟基）苯甲酰基 - β - D - 芹菜呋喃糖基（1→2）- β - D - 吡喃葡萄糖苷。通过将光谱数据与报道数据进行比较，确定三种已知化合物分别为 1 - O - 苄基[5 - O - 苯甲酰基 - β - D - 芹菜呋喃糖基（1→2）]- β - D - 吡喃葡萄糖苷 2、南瓜苷 C 3 和 A 4。化合物 2 首次从该植物中分离得到。