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Triterpenes fromMucuna birdwoodiana
Phytochemistry, 1991Methanolic extracts of the stalks of Mucuna birdwoodiana on acid hydrolysis and subsequent methylation with diazomethane provided four triterpene sapogenols. On the other hand, investigation of glycosides after methylation of the same extract led to the isolation of four triterpene glycosides.
Y, Ding, J, Kinjo, C R, Yang, T, Nohara
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Journal of Pharmaceutical Sciences, 1961
A water extract of the fungus Poria obliqua has been shown to possess tumor-inhibiting activity against two test tumors. Two triterpene alcohols were isolated from the hexane extract, one of which was identified as lanosterol. The second, named obliquol, C30H50O2, was shown to have two hydroxyl groups and two double bonds, one of which is inert to ...
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A water extract of the fungus Poria obliqua has been shown to possess tumor-inhibiting activity against two test tumors. Two triterpene alcohols were isolated from the hexane extract, one of which was identified as lanosterol. The second, named obliquol, C30H50O2, was shown to have two hydroxyl groups and two double bonds, one of which is inert to ...
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2014
Triterpenoids belong to a large and structurally diverse class of natural products which occur abundantly in plant kingdom, especially in higher plants in cases of pentacyclic and tetracyclic triterpenes, while mono-, bi-, and tricyclic triterpenes are prevalent in ferns and nonflowering lower plants (cryptogams).
Sunil Kumar Talapatra, Bani Talapatra
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Triterpenoids belong to a large and structurally diverse class of natural products which occur abundantly in plant kingdom, especially in higher plants in cases of pentacyclic and tetracyclic triterpenes, while mono-, bi-, and tricyclic triterpenes are prevalent in ferns and nonflowering lower plants (cryptogams).
Sunil Kumar Talapatra, Bani Talapatra
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Nature, 1938
THE tetracyclic triterpene alcohol basseol, which readily cyclizes to give β-amyrenol1, which in its turn is related to erythrodiol, gypsogenin and hederagenin2, on dehydrogenation with selenium gives as major product a phenanthrene homologue, m.p. 125° (Found: C, 92.7 ; H, 7.2.
J. H. BEYNON +2 more
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THE tetracyclic triterpene alcohol basseol, which readily cyclizes to give β-amyrenol1, which in its turn is related to erythrodiol, gypsogenin and hederagenin2, on dehydrogenation with selenium gives as major product a phenanthrene homologue, m.p. 125° (Found: C, 92.7 ; H, 7.2.
J. H. BEYNON +2 more
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Triterpenes and triterpene glycosides from the leaves of Ilex rotunda
Phytochemistry, 1993Abstract Two new triterpenes, ilexolic acid A and B, and seven new saponins, ilexosides XXXIII–XXXIX, together with the known saponin rotungenoside were isolated from the fresh leaves of Ilex rotunda , and their structures elucidated on the basis of chemical and physicochemical evidence.
Kayoko Amimoto +2 more
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Biotransformation of triterpenes
Process Biochemistry, 2011Triterpenes are a versatile group of biologically active ingredients present in several phytoextracts. They often occur as glycoconjugates with a distinct bioactivity from their aglycone counterparts. Deglycation of triterpenes can be performed by enzymatic and chemical reactions, whereas biotransformation is generally more specific and occurs without ...
Kai Muffler +9 more
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