Two new triterpenoids from the roots of Phyllanthus emblica

Fitoterapia
Thi-Anh-Tuyet NguyenKim-Phi-Phung Nguyen

Abstract

Two new triterpenes, the seco-friedelane type secofriedelanophyllemblicine and the ursane-derived saponin ursophyllemblicoside were isolated from the roots of the edible fruit-producing Phyllanthus emblica. Their structures were unambiguously elucidated using extensive 1D and 2D NMR analyses, high resolution mass spectrometry and single-crystal X-ray crystallographic analyses along with comparison with literature data. Secofriedelanophyllemblicine represents the first 3,4-secofriedelane bearing a carboxylic acid group substituent at C-20. Ursophyllemblicoside, incorporating the rare 21α hydroxyursolic acid as a sapogenol represents the first example of saponin comprising this aglycone. Secofriedelanophyllemblicine displayed a moderate cytotoxicity against K562 and HepG2 cancer cell lines.

Citations

Nov 22, 2019·Anti-cancer Agents in Medicinal Chemistry·Rumana AhmadArvind K Srivastava
Dec 2, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Roxana GhiulaiCodruţa Şoica
Aug 9, 2020·Fitoterapia·Ahmont Claude Landry KablanPierre Champy
May 1, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Thi-Bich-Ngoc DaoThuc-Huy Duong

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