Extraction, isolation and identification of four methoxyflavones from leaves of Muntingia calabura L.

Ngo Quoc Luan * , Ngo Khac Khong Minh , Nguyen Phuc Dam , Tiet Bao Tinh , Tran Thi Tuyet Hoa and Nguyen Trong Tuan

* Corresponding author (ngoquocluan@ctu.edu.vn)

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Received: 15 Dec 2019
Revised: 25 Mar 2020
Accepted: 31 Mar 2020
Published: 31 Mar 2020
DOI: 10.22144/ctu.jen.2020.008
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Ngo, Q. L., Ngo, K. K. M., Nguyen, P. D., Tiet, B. T., Tran, T. T. H., & Nguyen, T. T. (2020). Extraction, isolation and identification of four methoxyflavones from leaves of Muntingia calabura L. CTU Journal of Innovation and Sustainable Development , 12(1), 58-62. https://doi.org/10.22144/ctu.jen.2020.008
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Vol. 12 No. 1 (2020)

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Abstract

Four known methoxyflavones, namely 5-hydroxy-7-methoxyflavone (1), 5-hydroxy-3,7-dimethoxyflavone (2), 5-hydroxy-6,7-dimethoxyflavone (3) and 5-hydroxy-3,7,8-trimethoxyflavone (4) were isolated from acetone extracts of the leaves of Muntingia calabura L. Their structures were elucidated by modern spectra including UV, IR, ESI-HR-MS, 1D-NMR, 2D-NMR and by comparison with published data.
Keywords: Muntingia calabura L., methoxyflavones

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References

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