Article info.

ABSTRACT

Received date: 20/09/2015

Accepted date: 30/11/2016

This paper introduces the extraction and purification of some polymethoxylated flavones from Ageratum conyzoides L., (Family-Asteraceae), growing in Can Tho city. Different extraction methods were used to study on the aerial part of the herb. From 1% HCl in water extracts, three polymethoxylated flavones have been isolated and identified. They were O‑methyl apigenin, sinensetin, and scutellarein tetramethyl ether. Structures of isolated compounds were elucidated according to their ¹H-NMR, ¹³C-NMR, HSQC, HMBC, MS spectra as well as referring to published article.

Keywords

Polymethoxylated flavone, Ageratum conyzoides, O-methyl apigenin, sinensetin, scutellarein tetramethyl ether

Cited as: Phung Tan Phat and Le Hoang Ngoan, 2016. Isolation of three polymethoxylated flavones from Ageratum conyzoides L. growing in Can Tho city. Can Tho University Journal of Science. Vol 4: 13-19.