云南锡金黄皮树中新的三萜酮。

A new prenylated xanthone from Garcinia xipshuanbannaensis Y.H. Li.

机构信息

Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan Province 666303, P.R. China.

出版信息

Nat Prod Res. 2010 Oct;24(17):1648-53. doi: 10.1080/14786419.2010.485572.

DOI:10.1080/14786419.2010.485572

PMID:20954093

Abstract

A new prenylated xanthone, named bannaxanthone I, has been isolated from the leaves of Garcinia xipshuanbannaensis, along with five other known compounds, bannaxanthone E, mangostinone, tovophyllin A, garcinone E, and γ-mangostin. The structure of the new compound was elucidated on the basis of high-resolution fast atom bombardment mass spectra (HRFABMS), 1D-and 2D-NMR experiments, including heteronuclear multiple bond connectivity (HMBC), heteronuclear single quantum coherence (HSQC) and ¹H-¹H-COSY (correlated spectroscopy, COSY).

摘要

一种新的prenylated xanthone，命名为 bannaxanthone I，已从 Garcinia xipshuanbannaensis 的叶子中分离出来，此外还有其他五种已知化合物，bannaxanthone E、mangostinone、tovophyllin A、garcinone E 和 γ-mangostin。新化合物的结构是根据高分辨率快原子轰击质谱 (HRFABMS)、1D 和 2D-NMR 实验，包括异核多键连接 (HMBC)、异核单量子相干 (HSQC) 和 ¹H-¹H-COSY (相关光谱，COSY) 来阐明的。