Flavonoids and alkaloids from the rhizomes of Zephyranthes ajax Hort. and their cytotoxicity

Author:

Nguyen Khan Viet,Ho Duc Viet,Le Nhan Trong,Van Phan Kiem,Heinämäki Jyrki,Raal Ain,Nguyen Hoai Thi

Abstract

AbstractA new flavanol derivative, (2R,3R)-3-acetoxy-7-hydroxy-3′,4′-methylenedioxyflavan (1), was co-isolated from the rhizomes of Zephyranthes ajax Hort. with the following seven known compounds: 7-hydroxyflavan (2), 7,4′-dihydroxyflavan (3), 7,4′-dihydroxy-8-methylflavan (4), 7,3′-dihydroxy-4′-methoxyflavan (5), 5,4′-dihydroxy-7-methoxy-6-methylflavan (6), 7-hydroxy-3′,4′-methylenedioxyflavanone (7) and haemanthamine (8). Their structures were elucidated by combining 1D-/2D-NMR, CD, UV and HRESIMS data, and comparisons with reported data in literature were made. Among these known compounds, 2, 3, 4, 6 and 7 were isolated from the genus Zephyranthes for the first time. In addition, the cytotoxicity assay indicated that compound 8 has potent cytotoxic activity against human hepatocellular carcinoma (the HepG2 cell line), human lung carcinoma (the SK-LU-1 cell line), human carcinoma in the mouth (the KB cell line), human colon carcinoma (the SW480 cell line) and human stomach gastric adenocarcinoma (the AGS cell line), with IC50 values ranging from 4.4 to 11.3 µM. This is the first study reporting the cytotoxicity of compound 8 against the SK-LU-1 cancer cell lines.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Reference34 articles.

1. Willis, J. C. Amaryllidaceae. In A Dictionary of the flowering plants & ferns 8th edn (ed. Shaw, A. H. K.) (Cambridge University Press, Cambridge, 1988).

2. Ding, Y. et al. Phytochemical and biological investigations of Amaryllidaceae alkaloids: A review. J. Asian Nat. Prod. Res. 19, 53–100 (2017).

3. Meerow, A. W. & Snijman, D. A. Amaryllidaceae. In The Families and Genera of Vascular Plants Vol. 3 (ed. Kubitzki, K.) 83–110 (Springer, Berlin, 1998).

4. Ho, P. H. An Illustrated Flora of Vietnam Vol. 3, 496–503 (Youth Publishing House, Ho Chi Minh City, 2003).

5. Jin, Z. Amaryllidaceae and Sceletium alkaloids. Nat. Prod. Rep. 30, 849–868 (2013).

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