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The Tropical Brown Alga Lobophora variegata: A Source of Antiprotozoal Compounds

The whole extract of Lobophora variegata showed the highest activity against Trichomonas vaginalis, and the mixture of 1–3 showed good activity against E. histolytica and moderate activity against T. vaginalis; ground information is afford for the potential use of the whole extract and fractions of this species in protozoal infections.
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Preliminary results on the protective effect of (-)-edunol, a pterocarpan from Brongniartia podalyrioides (Leguminosae), against Bothrops atrox venom in mice.

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Antigiardial activity of triterpenoids from root bark of Hippocratea excelsa.

Two new triterpenoids, 21 beta-hydroxyolean-12-en-3-one and a seco-dinor derivative of pristimerine named dzununcanone, were isolated from the root bark of Hippocratea excelsa and the antiprotozoal activities were determined against Giardia intestinalis.
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Stimulation of witchweed germination by sesquiterpene lactones: a structure-activity study.

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21β-Hydroxy-oleanane-type triterpenes from Hippocratea excelsa

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Structure, Absolute Configuration, and Antiproliferative Activity of Abietane and Icetexane Diterpenoids from Salvia ballotiflora

The diterpenoid profile found is of chemotaxonomic relevance and reinforces the evolutionary link of S. ballotiflora with other members of the section Tomentellae.
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BROMINATED METABOLITES FROM THE SPONGE APLYSINA (VERONGIA) THIONA lr2

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Allelopathic agents from common weeds. Amaranthus palmeri, Ambrosia artemisiifolia, and related weeds.

Prenylflavanols from Tephrosia quercetorum

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Eudesmanolides, trichomatolides B–E, and A heliangolide from Calea trichomata

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