Studies on chemical constituents from roots of Pterospermum heterophyllum.

Author: Yan SHI ¹ ; Shuai LI ; Hong-yu LI ; Bao-song CUI ; Yi YUAN
Author Information

1. Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
Publication Type:Journal Article
MeSH: Chromatography; Malvaceae; chemistry; Naphthoquinones; chemistry; Oleanolic Acid; analogs & derivatives; chemistry; Palmitic Acid; chemistry; Plant Roots; chemistry; Sitosterols; chemistry; Triterpenes; chemistry
From: China Journal of Chinese Materia Medica 2008;33(16):1994-1996
CountryChina
Language:Chinese
Abstract:
OBJECTIVETo study the chemical constituents from the roots of Pterospermum heterophyllum.
METHODThe chemical constituents of P. heterophyllum were isolated and purified by silica gel and sephadex LH-20 column chromatography. Their structures were identified on the basis of spectroscopic data and physicochemical properties.
RESULTNine compounds were isolated and identified as taraxerol (1), betulin (2), betulinic acid (3), sumaresinolic acid (4), 2-methoxy-5-hydroxy-1, 4-naphthoquinone (5), 5, 7-dihydroxy-6, 8-dimethylchromone (6), alpha-monpalmitin (7), palmitic acid (8), beta-sitosterol (9).
CONCLUSIONCompounds 2-7 were isolated from this genus for the first time.