Bacopasides III-V: Three New Triterpenoid Glycosides from Bacopa monniera.
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چکیده
منابع مشابه
Bacopasides III-V: three new triterpenoid glycosides from Bacopa monniera.
Three new saponins, designated as bacopasides III, IV and V have been isolated from Bacopa monniera WETTST. and their structures have been elucidated as 3-O-alpha-L-arabinofuranosyl (1-->2)-beta-D-glucopyranosyl jujubogenin (1), 3-O-beta-D-glucopyranosyl (1-->3)-alpha-L-arabinopyranosyl jujubogenin (2) and 3-O-beta-D-glucopyranosyl (1-->3)-alpha-L-arabinopyranosyl pseudojujubogenin (3) mainly o...
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Three new phenylethanoid glycosides, viz. monnierasides I-III (1-3) along with the known analogue plantainoside B were isolated from the glycosidic fraction of Bacopa monniera. Their structures were elucidated mainly on the basis of two dimensional (2D) NMR spectral analyses.
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Introduction Bacopa monniera, also referred to as Bacopa monnieri, Herpestis monniera, water hyssop, and “Brahmi,” has been used in the Ayurvedic system of medicine for centuries. Traditionally, it was used as a brain tonic to enhance memory development, learning, and concentration, and to provide relief to patients with anxiety or epileptic disorders. The plant has also been used in India and ...
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Two new triterpenoid glycosides were isolated (one of them as the methyl ester) as major components from leaves of Ilex chinensis Sims (Aquifoliaceae) . The structures of these glycosides, termed ilexoside A (1) and ilexoside B methyl ester (2a), have been established to be 3ƒÀ-ƒ-(ƒÀ-Dxylopyranosyl)siaresinolic acid and 3ƒÀ-ƒ-(ƒÀ-D-xylopyranosyl)pomolic acid methyl ester , respectively, based o...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 2003
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.51.215