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Structure-activity relationships of some hederagenin diglycosides: haemolysis, cytotoxicity and apoptosis induction.
Hederagenin saponins are largely represented in nature and possess many biological activities such as haemolytic, antiviral, fungicidal, molluscicidal or cytotoxic, partially due to their interactionExpand
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Two new bis-iridoids isolated from Scabiosa stellata and their antibacterial, antioxidant, anti-tyrosinase and cytotoxic activities.
This study presents the chemical profile investigation of a 70% ethanol extract obtained from Scabiosa stellata, a medicinal herbaceous traditionally used to treat heel cracks. A 13C NMR-basedExpand
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Triterpenoid saponins from the stem bark of Caryocar villosum.
Five triterpenoid saponins, caryocarosides II-22 (3), III-22 (4), II-23 (5), III-23 (6), and II-24 (7), have been isolated from the methanol extract of the stem bark of Caryocar villosum, along withExpand
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Evaluation of the biological activity of the molluscicidal fraction of Solanum sisymbriifolium against non target organisms.
The evaluation of the biocidal activity of the fruit of Solanum sisymbriifolium involving non target organisms such as aquatic insects, fish and snails lead to the isolation of the steroidalExpand
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Triterpenoid saponins and other glycosides from the stems and bark of Jaffrea xerocarpa and their biological activity.
Six previously undescribed triterpenoid saponins and two previously undescribed norlupane triterpenes were isolated with five known saponins, three known lupane derivatives,Expand
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Synthesis of α‐Hederin, δ‐Hederin, and Related Triterpenoid Saponins
The synthesis of α-hederin (3-O-[α-L-rhamnopyranosyl-(1⇄2)-α-L-arabinopyranosyl]hederagenin, 1), δ-hederin (3-O-(α-L-arabinopyranosyl)hederagenin, 3), and three related triterpenoid saponins isExpand
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Isolation of flavonoids and triterpenoids from the fruits of Alphitonia neocaledonica and evaluation of their anti-oxidant, anti-tyrosinase and cytotoxic activities.
INTRODUCTION Alphitonia neocaledonica (Rhamnaceae) is an endemic tree of New Caledonia. Although three flavonoids have been identified in the leaves, the secondary metabolite profile of the fruitsExpand
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Complete 1H‐ and 13C NMR assignments of saponins from roots of Gypsophila trichotoma Wend.
The assignments of 1H and 13C NMR spectra of two new aminoacyl triterpene saponins from roots of Gypsophila trichotoma Wend. are reported. In addition to 1D NMR methods, 2D NMR techniques (COSY,Expand
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Oleanane-type triterpene saponins from Calendula stellata.
Five previously undescribed bisdesmosidic triterpenoid saponins named calendustellatosides A-E, along with fifteen known compounds were isolated from the 70% ethanol whole plant extract of CalendulaExpand
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Triterpenoid saponins from Scabiosa stellata collected in North-eastern Algeria.
Eight undescribed triterpenoid saponins, scabiostellatosides A-H, together with three known compounds were isolated from the whole plant of Scabiosa stellata L. Their structures were established byExpand
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