Xanthone glycosides from Tibetan herb Halenia elliptica
Liu, X.; Liu, Y.; Shi, Y.
Zhongguo Zhong Yao Za Zhi 34(5): 580-582
2009
ISSN/ISBN: 1001-5302 PMID: 19526788 Document Number: 628688
To isolate and identify the active xanthone glycosides in Halenia elliptica. The compounds were isolated by column chromatography, semi-preparative high performance liquid chromatography and related techniques. Their structures were elucidated through spectroscopic analysis (NMR and MS). Six xanthone glycosides were isolated and identified as: 2,3,5-trimethoxy-1-O-primeverosyloxyxanthone (1), 2, 3, 4, 5-tetramethoxy-1-O-primeverosyloxyxanthone (2), 2, 3, 5, 7-tetramethoxy-1-O-primeverosyloxyxanthone (3), 2, 3, 7-trimethoxy-1-O-primeverosyloxyxanthone (4), 2, 3, 4, 7-tetramethoxy-1-O-primeverosyloxyxanthone (5), and 2, 3, 4, 5, 7-pentamethoxy-1-O-primeverosyloxyxanthone (6). Compounds 4-6 were isolated from this plant for the first time.