Tetracyclic triterpenoids from Euphorbia nicaeensis All
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چکیده
منابع مشابه
Inhibition of 11b-HSD1 by tetracyclic triterpenoids from Euphorbia kansui.
The roots of Euphorbia kansui are considered an important traditional folk medicine. In this study the ethanol extracts of E. kansui were investigated. A new tetracyclic triterpenoid, euphane-3b,20-dihydroxy-24-ene, in addition to five known triterpenoids with euphane skeletons were isolated. Their structures were elucidated on the basis of physical and spectral techniques (1D-, 2D-NMR and MS, ...
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Two new glyceroglycolipids as well as three known ones were isolated from the glyceroglycolipids molecular species obtained from two less polar fractions of the MeOH extract of the plant Euphorbia nicaeensis All. using normal and reversed phase column flash chromatography. The structures of the isolated glyceroglycolipids were determined on the basis of chemical and spectroscopic evidences. Two...
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BACKGROUND AND AIMS In andromonoecious taxa with separate floral types along the inflorescence, architectural or plastic effects can simulate floral sexual dimorphism. Both the primary and secondary sexual characteristics of the cyathia of the protogynous andromonoecious species Euphorbia nicaeensis were analysed according to their sex and arrangement on the inflorescence. METHODS The product...
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Three new triterpenoids, designated as genicunolide A (1), B (2) and C (3), along with friedelin (4) and friedelinol (5), were isolated from the aerial parts of Euphorbia geniculata. They were characterized as 1β-acetoxy-3β-hydroxy-11α,12α-oxidotaraxer-14-ene, 1β,3β-diacetoxy-21α-hydroxy-11α,12α-oxidotaraxer-14-ene and 3β,9α,20α-trihydroxy-Ψ-taraxast-5-ene, respectively, by spectral and chemica...
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From hexanic extract of aerial parts of Peucedanum ruthenicum M. Bieb (Apiaceae) collected from Mazandaran province of Iran, four triterpenoids namely taraxasterol, y-taraxasterol, poriferasterol and b-sitosterol have been isolated by column chromatography, thin layer chromatography, and crystallization. Their structures were elucidated by spectroscopic methods (UV, IR, MS, 1H and 13C-N...
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ژورنال
عنوان ژورنال: Advanced Technologies
سال: 2019
ISSN: 2406-2979,2406-3037
DOI: 10.5937/savteh1902037k