The phytochemical studies of Eschweilera longipes Miers (Lecythidaceae) have led to the identification of a new triterpene 3beta, 24-dihydroxyfriedelane, the known 1beta, 2beta, 3beta, 19beta-tetrahydroxyurs-12-en-28-oic acid (1beta-hydroxyeucaphic acid) besides the saponin sitosterol 3betaO-betaD-glucopyranoside. The structures were established from the IR, NMR and mass spectra data including 2D NMR experiments of natural substances and of the acetyl derivative of the new triterpene.O estudo fitoquímico de Eschweilera longipes Miers (Lecythidaceae) conduziu a identificação de um novo triterpeno 3beta, 24-diidroxifriedelano, do ácido 1beta, 2beta, 3beta, 19beta-tetraidroxiursa-12-en-28-óico conhecido como ácido 1beta-hidroxieucáfico além da...
Abstract: The phytochemical investigation of the ethanol extract from leaves of Lecythis pisonis Cam...
Two saponins were isolated from the leaves of Lippia alba. Their structures were established using o...
The methanol extract of stems of Trichilia claussenii yielded three new sesquiterpenoids: 14-hydroxy...
The phytochemical studies of Eschweilera longipes Miers (Lecythidaceae) have led to the identificati...
The phytochemical studies of Eschweilera longipes have led to the identification of ten triterpenoid...
The phytochemical studies of Eschweilera longipes have led to the identification of ten triterpenoid...
A novel triterpene 1 (3- \u3b2-hydroxy-fern-7-en-6-one-acetate) together with four known compounds, ...
A novel oleane acid was isolated from the leaves and the fruits of Vochysia ferruginea. The structur...
A novel triterpene, characterized as 6alpha-hydroxybetulinic acid, was isolated from the leaves and ...
A new lupane triterpene, divergioic acid, has been isolated from the stem bark of Vochysia divergens...
Abstract: Our research program on the Central American fooder plant Gliricidia sepium led to the dis...
The phytochemical investigation of the ethanol extract from leaves of Lecythis pisonis Cambess., Lec...
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Chemical investigation of Sinnin...
A new lactonic triterpene isolated from the heartwood of Austroplenckia populnea (Celastraceae) was ...
Kedondong laut (Polyscias fruticosa) is one of medical plants which is useful to increase poultry im...
Abstract: The phytochemical investigation of the ethanol extract from leaves of Lecythis pisonis Cam...
Two saponins were isolated from the leaves of Lippia alba. Their structures were established using o...
The methanol extract of stems of Trichilia claussenii yielded three new sesquiterpenoids: 14-hydroxy...
The phytochemical studies of Eschweilera longipes Miers (Lecythidaceae) have led to the identificati...
The phytochemical studies of Eschweilera longipes have led to the identification of ten triterpenoid...
The phytochemical studies of Eschweilera longipes have led to the identification of ten triterpenoid...
A novel triterpene 1 (3- \u3b2-hydroxy-fern-7-en-6-one-acetate) together with four known compounds, ...
A novel oleane acid was isolated from the leaves and the fruits of Vochysia ferruginea. The structur...
A novel triterpene, characterized as 6alpha-hydroxybetulinic acid, was isolated from the leaves and ...
A new lupane triterpene, divergioic acid, has been isolated from the stem bark of Vochysia divergens...
Abstract: Our research program on the Central American fooder plant Gliricidia sepium led to the dis...
The phytochemical investigation of the ethanol extract from leaves of Lecythis pisonis Cambess., Lec...
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Chemical investigation of Sinnin...
A new lactonic triterpene isolated from the heartwood of Austroplenckia populnea (Celastraceae) was ...
Kedondong laut (Polyscias fruticosa) is one of medical plants which is useful to increase poultry im...
Abstract: The phytochemical investigation of the ethanol extract from leaves of Lecythis pisonis Cam...
Two saponins were isolated from the leaves of Lippia alba. Their structures were established using o...
The methanol extract of stems of Trichilia claussenii yielded three new sesquiterpenoids: 14-hydroxy...