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Acta amaz ; 181988.
Article in Portuguese | LILACS-Express | LILACS, VETINDEX | ID: biblio-1454231

ABSTRACT

A new naphthoquinoid identified as 6-oxo-3, 4, 4a, 5-tetrahydroxy-2, 2-dimethylnaphtho-1, 2-pirane (6) has been isolated from an antibacterial, methanolic extract of leaves and branches of Lippia sidoides cham. Beside to the new quinone, five other know substances were isolated, and isocatalponol. The following fatty acids were also identified: palmitic, stearic, behenic, arachidic and lignoceric.


Um novo na ftoquinoide identificado como 6-oxo-3, 4, 4a, 5 -tetrahidro-3-hiroxi-2, 2-dimetilnafto-1, 2-pirano (6) foi isolado dos extratos metanólicos do caule e das folhas de Lippia sidoides Cham.. Ao lado da nova quinona (6) foram isoladas e identificadas outras substâncias conhecidas, tais como: ácido vanílico, carvacrol, 6, 7-dimetoxi-4', 5-dihidroxiflavona, lapachenol e isocatalponol. Foram ainda identificados os seguintes ácidos graxos: palmitico estéarico, araquidico, behênico e lignocérico.

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