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Journal Articles Phytochemistry Year : 2009

Sesquiterpenoids from Teucrium ramosissimum

Abstract

An antiplasmodial bioguided investigation of the EtOAc extract of the aerial parts of Teucrium ramosissimum led to isolation and identification of three sesquiterpenoids, teucmosin, 4α-hydroxy-homalomenol C, 1β,4β,7α-trihydroxy-8,9-eudesmene and two trinorsesquiterpenoids, 4β-hydroxy-11,12,13-trinor-5-eudesmen-1,7-dione and 1β,4β-dihydroxy-11,12,13-trinor-8,9-eudesmen-7-one together with five known sesquiterpenoids, oplopanone, homalomenol C, oxo-T-cadinol, 1β,4β,6β-trihydroxyeudesmane, 1β,4β,7α-trihydroxyeudesmane and four flavonoids, 5-hydroxy-7,4′-dimethoxyflavone, salvigenin, genkwanin and cirsimaritin. The structures and the relative stereochemistry were elucidated by extensive spectroscopic studies including 1D and 2D NMR and mass spectrometry (MS). Homalomenol C, 4β-hydroxy-11,12,13-trinor-5-eudesmen-1,7-dione, oxo-T-cadinol and 1β,4β,6β-trihydroxyeudesmane displayed a significant in vitro antiplasmodial activity against Plasmodium falciparum with IC50 values ranging from 1.2 to 5.0 μg/ml. Furthermore, no cytotoxicity was observed upon the human diploid lung cell line MRC-5 for these compounds.

Dates and versions

mnhn-02070076 , version 1 (16-03-2019)

Identifiers

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H Henchiri, B Bodo, A Deville, L Dubost, L Zourqui, et al.. Sesquiterpenoids from Teucrium ramosissimum. Phytochemistry, 2009, 70 (11-12), pp.1435-1441. ⟨10.1016/j.phytochem.2009.08.012⟩. ⟨mnhn-02070076⟩

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