Tran Thanh Ha1,*, Nguyen Van Dau2, Nguyen Thi Minh Nguyet2, Do Thi Ha1, Nguyen Dinh Tuan3
1National Institute of Medicinal Materials, Vietnam
2University of Natural Sciences - Vietnam National University, Hanoi, Vietnam;
3Institute of Forensic Science, Ministry of Public Security, Vietnam
*Corresponding author: thanhha.tran889@gmail.com
(Received April, 28th, 2015)
Summary
Chemical Constituents of n-Butanol Extract of Polygonum barbatum L. Collected in Vietnam
The study on the chemical constituents of the n-butanol extract of Polygonum barbatum L. has resulted in the characterization of four compounds which were identified as ethyl 3,4,5-trihydroxybenzoate (1), 3-methoxy-4-hydroxyacetophenone (2), 3,4,5-trimethoxyphenol-1-O-β-D-glucopyranoside (3) and shikimic acid (4). These compounds were isolated for the first time from Polygonum barbatum L. The structures of the isolated compounds were identified on the basis of 1D, 2D-NMR spectral analysis and in comparison with the published NMR data.

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