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1.
Bol. latinoam. Caribe plantas med. aromát ; 12(1): 15-17, ene. 2013. ilus
Article in English | LILACS | ID: lil-722503

ABSTRACT

alpha spinasterol was identified in stems of Amaranthus spinosus. The structure was obtained by spectroscopic methods and comparison with literature data.


alfa spinasterol fue identificado en ramas de Amaranthus spinosus. La estructura fue obtenida por metodos espectroscópicos y por comparación con datos de literature.


Subject(s)
Amaranthus/chemistry , Stigmasterol/isolation & purification , Stigmasterol/analogs & derivatives , Plant Stems/chemistry , Spectrum Analysis
2.
Article in English | LILACS | ID: lil-613650

ABSTRACT

3-hydroxy-1-methylene-2,3,4,4-tetrahydroxynapthalene-2-carbaldehyde (1), 22,23-dihydroxy spinasterol (2) were isolated from petroleum ether extrct of the fruits of Luffa cylindrical. The structures of the isolated compounds were elucidated by extensive spectroscopic studies including IR and high field NMR analysis.Petroleum ether extract (i.e. crude extract) exhibited mild to moderate antimicrobial activity. This is the first report of isolation of compound of 1 – 2 from this species.


3-hydroxi-1-metilen-2,3,4,4-tetrahidroxinaftalen-2-carbaldehido (1), 22,23-dihidroxispinasterol (2) fueron aislados de un extracto en eter de petróleo de la fruta de Luffa cylindrica. Las estructuras de estos compuestos fueron deducidas por estudios espectroscópicos incluyendo IR y RMN de alto campo. El extracto crudo en éter de petróleo mostró actividad antimicrobiana de leve a moderada. El presente estudio representa el primer reporte de estos compuestos en L cylindrica.


Subject(s)
Anti-Bacterial Agents/analysis , Anti-Bacterial Agents/pharmacology , Bacteria , Luffa/chemistry , Spectrum Analysis
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