Steroidal Alkaloids in Apocynaceae
نویسندگان
چکیده
منابع مشابه
Steroidal alkaloids from Veratrum taliense
Phytochemical reinvestigation of the roots and rhizomes of Veratrum taliense yield three known (solanidine, veramiline-3-0-~D-glucopyranoside and stenophylline B-3-0-~D-glucopyranoside) and two novel steroidal alkaloids. The structures of the new compounds have been established by a combination of spectroscopic methods as 3angeloylzygadenine-I3-N-oxide and (20S,25S)-22,26-epiminocholesta-5,22-d...
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Twelve steroidal alkaloids were isolated from four populations of Veratrum lobelianum Bernh. and Veratrum nigrum L. Full NMR data for veralosinine (1), and extensive 1H NMR data for veralosine (3) and teinemine (5) are presented here for the first time. (+/-)-15-O-(2-Methylbutyroyl)germine (10) is undescribed up to now. The antiproliferative activities of veranigrine, veralosinine, and neogermi...
متن کاملSteroidal alkaloids isolated from leaf (olea Europaea) decreased cerebral ischemic – induced inury on rats
Background: The steroidal alkaloids incurring great interest because of their various pharmacological properties that isolated from various species. The aim of this investigation has been to studying of the effects of Steroidal alkaloids isolated from olive leaf on cerebral ischemic – induced inury on rats. Materials and methods: In this experimental study, 48 male wistar rats divided to s...
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Dois novos alcalóides indólicos com esqueleto plumerano, spruceanuminas A (1) e B (2), e oito alcalóides indólicos conhecidos, aspidospermidina (3), desmetoxipalosina (4), aspidocarpina (5), aspidolimina (6), fendlerina (7), aspidolimidina (8), obscurinervidina (9) e obscurinervina (10), foram isolados do extrato metanólico das cascas do caule e sementes de Aspidosperma spruceanum. As estrutura...
متن کاملSynthesis of Bisindole Alkaloids from the Apocynaceae Which Contain a Macroline or Sarpagine Unit: A Review.
Bisindole natural products consist of two monomeric indole alkaloid units as their obligate constituents. Bisindoles are more potent with respect to their biological activity than their corresponding monomeric units. In addition, the synthesis of bisindoles are far more challenging than the synthesis of monomeric indole alkaloids. Herein is reviewed the enantiospecific total and partial synthes...
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ژورنال
عنوان ژورنال: Nature
سال: 1965
ISSN: 0028-0836,1476-4687
DOI: 10.1038/206752b0