Two new xanthones, angustins A and B (1 and 2), were isolated from the aerial parts of Swertia angustifolia together with six known compounds (3-8). The structures of these two xanthones were elucidated by extensive analysis of the spectroscopic data. In addition, compounds 3 and 6-8 were isolated from this plant for the first time.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1080/10286020.2011.641013 | DOI Listing |
Pharmacogn Mag
January 2017
College of Traditional Chinese Medicine, Yunnan University of Traditional Chinese Medicine, Kunming, China.
Background: Millions of people are killed by viral hepatitis every year in the world, whereas many relevant medicines are too expensive to purchase. , a medicinal plant for hepatitis in the system of traditional Chinese medicine, has been vanishing gradually because of overexploitation.
Objective: To find substitutes of and reduce the cost of purchasing drugs for hepatitis patients, the similarity of phytochemical constituents between and other three species was compared.
Pharmacogn Mag
January 2016
Plant Biotechnology and Tissue Culture Division, Regional Medical Research Centre, Indian Council of Medical Research, Nehru Nagar, Belagavi, Karnataka, India.
Background: Genus Swertia is valued for its great medicinal potential, mainly Swertia chirayita (Roxb. ex Fleming) H. Karst.
View Article and Find Full Text PDFThis present work is to study the chemical constituents of Swertia angustifolia. The whole plants of air-dried Swertia angustifolia was extracted with 90% EtOH. The water extract was suspended in H2O and extracted with petroleum ether, EtOAc and nBuOH, successively.
View Article and Find Full Text PDFBMC Res Notes
December 2015
Central Department of Biotechnology, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
Background: The genus Swertia is reported to contain potent bitter compounds like iridoids, xanthones and c-glucoflavones that are known to heal many human disorders. In contrast to high ethnomedicinally valued Swertia chirayita, its other species have not been studied extensively, in spite of their common use in traditional medicinal system in Nepalese communities. So, the present study attempts to investigate the content of total polyphenols, flavonoids, antioxidant activity and estimate the rough content of amarogentin, swertiamarin and mangiferin from different species of Swertia from Nepalese Himalayas.
View Article and Find Full Text PDFPlanta Med
November 2012
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, PR China.
Five unusual lactonic enamino ketones, gentiocrucines A-E (1-5), were isolated from Swertia macrosperma and S. angustifolia. Their structures were determined based on extensive spectroscopic analyses (IR, UV, MS, 1D- and 2D-NMR).
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!