Journal of Medicinal Materials, 2020, Vol. 25, No. 3 (pp. 141 - 146)

FLAVONOIDS FROM AERIAL PARTS OF POLYGONUM MINUS HUDS.

Nguyen Van Tai, Phung Nhu Hoa, Nguyen Thi Thu Trang, Nguyen Minh Khoi, Le Thanh Nghi*

National Institute of Medicinal Materials, Hanoi, Vietnam

*Corresponding author: thanhnghi.vdl@gmail.com

(Received May 20^th, 2020)

Summary

flavonoids from Aerial Parts of Polygonum minus Huds.

The report described the first isolation of six flavonoids (quercetin (1), quercitrin (2), guaijaverin (3), isoquercitrin (4), hyperoside (5), miquelianin (6)) from Polygonum minus collected in southern Vietnam. Their isolations were firstly fractionated by column chromatography on silica gel and secondly performed by preparative HPLC. The chemical structures of these flavonoids were confirmed by spectroscopic analysis (MS, ¹H- and ¹³C-NMR). Therein, guaijaverin, miquelianin, or even quercitrin could be used as marker compound.

Keywords: Polygonum minus, Flavonoid, Quercitrin, Guaijaverin, Isoquercitrin, Hyperoside, Miquelianin.

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