RESUMEN
From the wood benzene and chloroform extracts of Swartzia brachyrachis Harms var.brachyrachis were isolated, by chromatografph methods, an undocumented isoflavone (7,4'-dihydroxy-5,3',5'trimethoxy-6-methylisoflavone) named brachyrachisine and a glucoside (3-O--D-glucopyranosylsitosterol). The structures were elucidated by spectroscopic analysis.
Dos extratos benzênico e clorofórmico da madeira de Swartzia brachyrachisHarms var. brachyrachis foram isolados, por métodos cromatográficos, uma isoflavona inédita (7,4'diidroxi -5,3'5'-trimetoxi-6-metilisoflavona), denominada brachyrachisina, c um glicosídio (3-O--D-glicopiranosilsitosterol). As estruturas foram elucidadas através de análises espectroscópicas.
RESUMEN
SUMMARY Six indole alkaloids (coronaridine, voacangine, epiheyneanine, vobasine, affinisine and olivacine) as well as lupeol, 30 acetyllupeol and sitosterol were isolated from the roots of Tabernaemontana heterophylla Vahl.
Resumo Dos extratos metanólicos da casca e do lenho da raíz da Tabernaemontana heterophylla Vahl. (Apocynaceae) foram isolados, além de sitosterol, lupeol e 3Oacetillupeol, seis alcalóides indólicos: coronaridina, vobasina, affinisina, olivacina, voacangina e epiheyneanina.
RESUMEN
Summary From a drink widely utilized by the Indian nations of western Amazonia, hallucinogenic, two -carbolinic alkaloids have been isolated.