jalapinolic acid/batatsläktet

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Four new pentasaccharide resin glycosides from Ipomoea cairica with strong α-glucosidase inhibitory activity.

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Six pentasaccharide resin glycosides from Ipomoea cairica, including four new acylated pentasaccharide resin glycosides, namely cairicoside I-IV (1-4) and the two known compounds cairicoside A (5) and cairicoside C (6), were isolated from the aerial parts of Ipomoea cairica. Their structures were

Pentasaccharide resin glycosides from Ipomoea cairica and their cytotoxic activities.

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Six partially acylated pentasaccharide resin glycosides, cairicosides A-F, were isolated from the aerial parts of Ipomoea cairica. These compounds were characterized as a group of macrolactones of simonic acid A, partially acylated with different organic acids. The lactonization site of

Bacterial resistance modifying tetrasaccharide agents from Ipomoea murucoides.

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As part of an ongoing project to identify oligosaccharides which modulate bacterial multidrug resistance, the CHCl(3)-soluble extract from flowers of a Mexican arborescent morning glory, Ipomoea murucoides, through preparative-scale recycling HPLC, yielded five lipophilic tetrasaccharide inhibitors

[Chemical Constituents of the Convolvulaceae-Resins IV1.].

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From the roots and upper parts of the Convolvulaceae IPOMOEA QUAMOCLIT, I. LACUNOSA, I. PANDURATA and CONVOLVULUS AL-SIRENSIS by ether-, petrolether and ethanol extraction respectively a resin material could be isolated, which yielded after alcaline hydrolysis glycosidic acids with jalapinolic acid

Mammalian multidrug resistance lipopentasaccharide inhibitors from Ipomoea alba seeds.

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As part of an ongoing project to identify inhibitors of multidrug efflux pumps, three new resin glycosides, albinosides I-III (1-3), were isolated from a CHCl(3)-soluble extract from the seeds of moon vine (Ipomoea alba). Their structures were established through NMR spectroscopy and mass

Pentasaccharide resin glycosides from Ipomoea pes-caprae.

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Pescapreins XXI-XXX (1-10), pentasaccharide resin glycosides, together with the known pescapreins I-IV and stoloniferin III were isolated from the aerial parts of Ipomoea pes-caprae (beach morning-glory). The pescapreins are macrolactones of simonic acid B, partially esterified with different fatty

Resin glycosides from Ipomoea pes-caprae.

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Ipomoea pes-caprae (beach morning-glory; "riñonina" for the herbal drug in Mexico) is prescribed by traditional healers to moderate "heat" in an infected kidney. The hexane-soluble extract from the aerial parts of this medicinal plant, through preparative-scale recycling HPLC, yielded six new

Characterization of lipophilic pentasaccharides from beach morning glory (Ipomoea pes-caprae).

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The hexane-soluble extract from the aerial parts of the herbal drug Ipomoea pes-caprae (beach morning-glory), through preparative-scale recycling HPLC, yielded six lipophilic glycosides, namely, five new pentasaccharides of jalapinolic acid, pescaproside A (1) and pescapreins I-IV (2-5), as well as

Hepta-, hexa-, penta-, tetra-, and trisaccharide resin glycosides from three species of Ipomoea and their antiproliferative activity on two glioma cell lines.

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Six new partially acylated resin glycosides were isolated from convolvulin of Ipomoea purga, Ipomoea stans, and Ipomoea murucoides (Convolvulaceae). The structures of compounds 1-6 were elucidated by a combination of NMR spectroscopy and mass spectrometry. The structure of jalapinoside B (1)

Stoloniferins VIII-XII, resin glycosides, from Ipomoea stolonifera.

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Five new ether-soluble resin glycosides were isolated from whole plants of Ipomoea stolonifera. Their structures have been determined on the basis of chemical and spectral data. Similar to the resin glycosides previously isolated, all of them are monomers of a jalapinolic acid tetra- or

Orizabins V-VIII, tetrasaccharide glycolipids from the Mexican scammony root (Ipomoea orizabensis).

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An extensive investigation of the so-called jalapin resinoid obtained from roots of the Mexican scammony, Ipomoea orizabensis, using high field NMR spectroscopy led to the characterization of six glycosides, including the known scammonins I (1) and II (2) and four new tetrasaccharides of jalapinolic

Profiling of the resin glycoside content of Mexican jalap roots with purgative activity.

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Mexican Jalap roots, a prehispanic medicinal plant complex still considered to be a useful laxative, can be found as an ingredient in some over-the-counter products sold by herbalists in contemporary Mexico. The drug is prepared from the dried roots of several morning glories, all of which have been

Ipomeolides A and B, Resin Glycosides from Ipomoea pes-caprae and Combination Therapy of Ipomeolide A with Doxorubicin.

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Two new resin glycosides, ipomeolides A (1) and B (2), both with an unusual nonlinear heteropentasaccharide core, along with five known compounds were isolated from the n-hexane/CHCl₃ (1:1) extract of the aerial parts of Ipomoea pes-caprae. Ipomeolides A (1) and B (2) are macrolactone

Resin glycosides from the flowers of Ipomoea murucoides.

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The CHCl(3)-soluble extract from the flowers of the Mexican medicinal plant Ipomoea murucoides, through preparative-scale recycling HPLC, yielded murucoidins I-V (1-5), which are new pentasaccharides of jalapinolic acid, as well as the known stoloniferin I (6). Saponification of the crude resin

Batatins VIII-XI, glycolipid ester-type dimers from Ipomoea batatas.

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Sweet potato (Ipomoea batatas) is native to the tropics of Central and South America, where many varieties have been consumed for more that 5000 years. In developing countries, this crop is a recognized effective food for fighting malnutrition. Purification of the minor lipophilic glicolipids found

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