Flavone glycosides from Uraria crinita

Authors

  • Tran Duc Dai
  • Dao Duc Thien
  • Nguyen Thanh Tam

Abstract

A common edible herb found in all regions of Vietnam is Uraria crinita (L.) DC. (Leguminosae). It has been used as a vegetable or in folk medicine to treat lung disorders, sprains, bruises, diarrhea, and rheumatism. Pharmacological studies have shown that U. crinita possesses a range of medicinal qualities, including as antioxidant, anti-inflammatory, and osteogenic activity, as well as the ability to lessen ulcers brought on by stress. Numerous substances, including flavonoids, triterpenes, megastigmanes, and nucleosides, have been identified as this plant’s active ingredients. Four flavone glycosides including apigenin 7-O-β-glucoside (1), chrysoeriol 7-O-β-glucoside (2), rhoifolin (3), and 3’-methoxyapiin (4) were isolated from the n-butanol extract of the whole plant Uraria crinita collected in the Phu Tho province, Vietnam. Their structures were elucidated by 1D- and 2D-NMR spectra and compared with those reported in the literature. The structures of compounds 1-4 were determined by spectroscopic methods and comparison with published data. Compounds 1-3 were obtained from the genus Uraria for the first time. This is the first report of these compounds from the genus Uraria.

Keywords:

apigenin 7-O-β-glucoside, chrysoeriol 7-O-β-glucoside, flavone glycosides, rhoifolin, Uraria crinita

DOI:

https://doi.org/10.31276/VJSTE.63(2).03-06

Classification number

2.2

Author Biographies

Tran Duc Dai

Tan Trao University, Km 6, Trung Mon Commune, Yen Son District, Tuyen Quang Province, Vietnam

Dao Duc Thien

Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Nguyen Thanh Tam

Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Street, Nghia Do Ward, Cau Giay District, Hanoi, Vietnam

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Published

2021-06-15

Received 4 January 2021; revised 13 March 2021; accepted 25 March 2021

How to Cite

Tran Duc Dai, Dao Duc Thien, & Nguyen Thanh Tam. (2021). Flavone glycosides from Uraria crinita. Vietnam Journal of Science, Technology and Engineering, 63(2), 3-6. https://doi.org/10.31276/VJSTE.63(2).03-06

Issue

Section

Physical Sciences