Isolation of three polymethoxylated flavones from Ageratum conyzoides L. growing in Can Tho city

Phung Tan Phat * and Le Hoang Ngoan

* Corresponding author (tanphat6194@gmail.com)

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Received: 24 Sep 2015
Revised: 14 Dec 2015
Accepted: 30 Nov 2016
Published: 30 Nov 2016
DOI: 10.22144/ctu.jen.2016.038
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Phung, T. P., & Le, H. N. (2016). Isolation of three polymethoxylated flavones from Ageratum conyzoides L. growing in Can Tho city. CTU Journal of Innovation and Sustainable Development , (04), 13-19. https://doi.org/10.22144/ctu.jen.2016.038
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No. 04 (2016)

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Abstract

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 scutellareintetramethyl 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, scutellareintetramethyl ether

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