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Cytotoxic triterpenoid saponins of Albizia gummifera from the Madagascar rain forest.
Bioassay-guided fractionation of an EtOH extract obtained from the roots of the Madagascan plant Albizia gummifera led to the isolation of three new cytotoxic oleanane-type triterpenoid saponins,Expand
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Cytotoxic compounds from Mundulea chapelieri from the Madagascar Rainforest.
Bioassay-guided fractionation of methanolic extracts of Mundulea chapelieri resulted in the isolation of two new flavonoids, isomundulinol (1) and 3-deoxy-MS-II (2), in addition to the eight knownExpand
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Antiproliferative Compounds from Cleistanthus boivinianus from the Madagascar Dry Forest1
The two new lignans 3α-O-(β-d-glucopyranosyl)desoxypodophyllotoxin (1) and 4-O-(β-d-glucopyranosyl)dehydropodophyllotoxin (2) were isolated from Cleistanthus boivinianus, together with the knownExpand
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Cytotoxic clerodane diterpenoids and their hydrolysis products from Casearia nigrescens from the rainforest of Madagascar.
Bioassay-guided fractionation of the cytotoxic leaf and flower extract of Casearia nigrescens led to the isolation of four new clerodane diterpenoids, designated caseanigrescens A-D (1-4). TheseExpand
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Cytotoxic cardenolide glycosides of Roupellina (Strophanthus) boivinii from the Madagascar rainforest.
Bioassay-guided fractionation of an ethanol extract of Roupellina (Strophanthus) boivinii from the rainforest of Madagascar afforded the six new cardenolide glycosides boivinides 1-6, as well as theExpand
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New cytotoxic oleanane saponins from the infructescences of Polyscias amplifolia from the Madagascar rainforest.
Bioassay-guided fractionation of an ethanolic extract of the infructescences of Polyscias amplifolia resulted in the isolation of two new oleanolic acid saponins, polyfoliolides A (1) and B (2), inExpand
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Two new triterpene esters from the twigs of Brachylaena ramiflora from the Madagascar rainforest.
Bioassay-guided fractionation of a CH(2)Cl(2)/MeOH extract of the small twigs of Brachylaena ramiflora var. ramiflora resulted in the isolation of the two new triterpene esters 1 and 2 and five knownExpand
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Cytotoxic triterpenoids from Acridocarpus vivy from the Madagascar rain forest.
Bioassay-guided fractionation of the cytotoxic MeOH extract obtained from Acridocarpus vivy led to the isolation of five new triterpenoids, acridocarpusic acids A-E (1-5); three known triterpenoids,Expand
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Antimalarial 5,6-Dihydro-α-pyrones from Cryptocarya rigidifolia: Related Bicyclic Tetrahydro-α-Pyrones Are Artifacts1
Antimalarial bioassay-guided fractionation of an EtOH extract of the root wood of Cryptocarya rigidifolia (Lauraceae) led to the isolation of the five new 5,6-dihydro-α-pyrones cryptorigidifoliolsExpand
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Antiproliferative compounds of Artabotrys madagascariensis from the Madagascar rainforest
Bioassay-guided fractionation of an ethanol extract of Artabotrys madagascariensis led to the isolation of the new compound artabotrene (1), two butenolides (2 and 3), and the tetracyclic triterpeneExpand
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