RESUMO
Four thymol derivatives and two phenolic compounds were isolated from the aerial parts of Eupatorium fortunei. The new structures were elucidated to be 7,8,9-trihydroxythymol (1), and 8,10-didehydro-7,9-dihydroxythymol (2) by means of MS and NMR analysis. The known compounds were identified as 8,9,10-trihydroxythymol (3), 10-acetoxy-8,9-dihydroxythymol (4), o-coumaric acid (5) and 4-(2-hydroxyethyl)benzaldehyde (6). Compound 3 showed strongest inhibitory effect on the growth of Microcystis aeruginosa in comparison with CuSO4.
Assuntos
Antibacterianos/farmacologia , Eupatorium/química , Fenóis/química , Antibacterianos/química , Avaliação Pré-Clínica de Medicamentos , Espectroscopia de Ressonância Magnética , Microcystis/efeitos dos fármacos , Estrutura Molecular , Fenóis/farmacologia , Componentes Aéreos da Planta/química , Extratos Vegetais/química , Timol/química , Timol/farmacologiaRESUMO
The natural compounds, isolated from medicinal plants and endowed with anti-diabetic activity, were reviewed:19 triterpenoidal glycosides, mainly isolated from species of Aralia and Panax generas (Araliaceae) and from Beta vulgaris L. species (Chenopodiaceae). Viet Nam has almost all these traditional medicinal plants species
Assuntos
Produtos Biológicos , Verduras , Triterpenos , HipoglicemiaRESUMO
A new alkaloid, isostenine (1), together with two known ones neotuberostemonine (2) and bisdehydroneotuberostemonine (3) were isolated from the root of Stemona collinsae. Their structures were determined by various spectral methods.
