Chemical contituents in leaves of Ehretia thyrsiflora.

Author: Li LI ¹ ; Renbing SHI ; Tana WU-LAN ; Liji XU ; Yong PENG ; Peigen XIAO
Author Information

1. Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100193, China.
Publication Type:Journal Article
MeSH: Allantoin; chemistry; Boraginaceae; chemistry; Caffeic Acids; chemistry; Magnetic Resonance Spectroscopy; Plant Leaves; chemistry; Sitosterols; chemistry
From: China Journal of Chinese Materia Medica 2010;35(3):331-332
CountryChina
Language:Chinese
Abstract:
OBJECTIVETo investigate the chemical constituents of Ehretia thyrsiflora.
METHODCompounds were isolated with silica gel, Sephadex LH-20 and RP-C18 colum chromatography. Their structures were elucidated by means of physico-chemical properties and spectral analysis.
RESULTSix compounds were isolated and identified as beta-sitosterol (1), ethyl caffeate (2), 2-methoxyl benzoic acid octyl ester (3), tetradecenoic acid, 2,3-dihydroxypropyl ester (4), daucoster (5), allantoin (6).
CONCLUSIONCompounds 1-5 were obtained from this species for the first time. Compounds 2-5 were obtained from the genus Ehretia for the first time.