14-decarboxyquinovic and quinovic acid glycosides from Zygophyllum album

Hassanean, Hashim A.; El-Hamouly, M.M.A.; El‐Moghazy, S. A.; Bishay, D. W.

doi:10.1016/0031-9422(93)85470-c

Cited by 24 publications

(16 citation statements)

References 15 publications

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“…Seven known triterpene glycosides were identified as, quinovic acid‐3‐ O ‐β‐D‐glucopyranosyl‐(28 → 1)‐β‐D‐glucopyranosyl ester ( 2 ), quinovic acid‐3‐ O ‐β‐D‐quinovopyranosyl‐(28 → 1)‐β‐D‐glucopyranosyl ester ( 3 ), quinovic acid‐3‐ O ‐β‐D‐glucopyranoside ( 4 ), quinovic acid‐3‐ O ‐β‐D‐2‐ O ‐sulphonylquinovopyranoside ( 5 ), quinovic acid‐3‐ O ‐β‐D‐quinovopyranoside ( 6 ), quinovic acid‐3‐[β‐D‐xylopyranosyl (1 → 2)‐quinovopyranosyl]‐(28 → 1)‐β‐D‐glucopyranosyl ester ( 7 ), quinovic acid‐3‐ O ‐β‐D‐quinovopyranosyl‐(27 → 1)‐β‐D‐glucopyranosyl ester ( 8 ) by comparing their NMR data with those of reported . A known flavonoid glycoside, isorhamnetine rutinoside ( 9 ), was also identified by spectroscopic data analyses and comparison with literature …”

Section: Resultsmentioning

confidence: 99%

A new lignan from Zygophyllum aegyptium

Zaki

Ali

El‐Amier

et al. 2016

Magnetic Reson in Chemistry

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Section: Resultsmentioning

confidence: 99%

A new lignan from Zygophyllum aegyptium

Zaki

Ali

El‐Amier

et al. 2016

Magnetic Reson in Chemistry

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“…Three new bisdesmosidic triterpene saponins, zygophylosides I, L and M, possessing 3β-hydroxy-urs-20(21)-en-28-oic acid or 3β-hydroxy-27nor-oleanolic-acid as aglycons and three known quinovic acid glycosides, two of them having an -SO 3 H residue on the sugar moieties, were isolated from the aerial parts (Safir et al, 1998). Ursane glycosides (triterpenoid saponins) with an -SO 3 H group on the sugar moiety seem to be characteristic metabolites of the genus Zygophyllum (Ahmad et al, 1993;Hassanean et al, 1993;Pollmann et al, 1997). Extracts of the aerial parts, some partially purified fractions as well as zygophyloside M and 3-O-β-D-glucopyranosyl quinovic acid 28-β-D-glucopyranosyl ester were reported to reduce both electrically-stimulated contractions and morphine withdrawal in isolated guinea-pig ileum (Capasso et al, 1998).…”

Section: Polysaccharides Glycosides and Related Compoundsmentioning

confidence: 99%

Medicinal halophytes: potent source of health promoting biomolecules with medical, nutraceutical and food applications

Ksouri

Megdiche-Ksouri

Jallali

et al. 2011

Critical Reviews in Biotechnology

358

261

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Salt-tolerant plants grow in a wide variety of saline habitats, from coastal regions, salt marshes and mudflats to inland deserts, salt flats and steppes. Halophytes living in these extreme environments have to deal with frequent changes in salinity level. This can be done by developing adaptive responses including the synthesis of several bioactive molecules. Consequently, several salt marsh plants have traditionally been used for medical, nutritional, and even artisanal purposes. Currently, an increasing interest is granted to these species because of their high content in bioactive compounds (primary and secondary metabolites) such as polyunsaturated fatty acids, carotenoids, vitamins, sterols, essential oils (terpenes), polysaccharides, glycosides, and phenolic compounds. These bioactive substances display potent antioxidant, antimicrobial, anti-inflammatory, and anti-tumoral activities, and therefore represent key-compounds in preventing various diseases (e.g. cancer, chronic inflammation, atherosclerosis and cardiovascular disorder) and ageing processes. The ongoing research will lead to the utilisation of halophytes as a new source of healthy products as functional foods, nutraceuticals or active principles in several industries. This contribution focuses on the ethnopharmacological uses of halophytes in traditional medicine and reviews recent investigations on their biological activities and nutraceuticals. The work is distributed according to the different families of nutraceuticals (lipids, vitamins, proteins, glycosides, phenolic compounds, etc.) discussing the analytical techniques employed for their determination. Information about the claimed health promoting effects of the different families of nutraceuticals is also provided together with data on their application.

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“…Also, signal of C-3 appeared at δ 135.14 followed by nonoxygenated carbons C-2 / and C-6 / at δ 131.28 as well as C-3 / and C-5 / at δ 116. 36. The most non-affected quaternary carbons C-1 / appeared at δ 120.37 and C-10 at δ 106.59.…”

Section: Resultsmentioning

confidence: 97%

“…6 Table 5. 35,36 Acid hydrolysis of compound VII yielded glucose and rhamnose as sugar moiety. A comparison of 13 C-NMR spectrum of compound VII (Table 4) with the literature 34,36 revealed that this compound has quinovic acid as the aglycone part with two glycosidation sides at C-3 and C-28.…”

Section: Resultsmentioning

confidence: 99%

“…35,36 Acid hydrolysis of compound VII yielded glucose and rhamnose as sugar moiety. A comparison of 13 C-NMR spectrum of compound VII (Table 4) with the literature 34,36 revealed that this compound has quinovic acid as the aglycone part with two glycosidation sides at C-3 and C-28. 35 The first glycosidation side was confirmed by shifting of C-3 at downfield δ 88.53 in the 13 C-NMR spectrum (Table 4) compared with the same carbon of quinovic acid which appeared at δ 79.96.…”

Section: Resultsmentioning

confidence: 99%

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Phytochemical Investigation and Molluscicidal Activity of Oreopanax Reticulatum Donn

Abd-Elgawad

El-Nahas

El-Sayed

et al. 2004

Bulletin of Pharmaceutical Sciences. Assiut

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III and VI) (LC90= 7 and 6 ppm). .The unsaponifiable part of the petroleum ether fraction of the leaves and stems of Oreopanax reticulatum Donn (Family Araliaceae) was analysed by GLC to reveal the presence of a series of hydrocarbons, cholesterol, stigmasterol and -sitosterol. Also, eight fatty acids were identified on the saponifiable part. The butanolic fraction was chromatographed over silica gel and sephadex-LH20 columns and preparative thin layer chromatography to afford two flavonoid glycosides (I and IV) as well as four bidesmosidic triterpenoidal saponins (II, V, VII and VIII). Alkaline hydrolysis of two bidesmosidic saponins (II and V) gave two monodesmosidic (III and VI). Their structures were elucidated using spectroscopic and chemical techniques.Molluscicidal screening of the isolated compounds (I-VIII) against Biomphalaria alexandrina snails, the intermediate host of Schistosoma mansoni in Egypt revealed that the two monodesmosidic triterpenoidal saponins (III and VI) have strong activities (LC 90 = 7 and 6 ppm) after 24 hours exposure whereas the two flavonoid glycosides and four bidesmosidic saponins were inactive up to 50 ppm.

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14-decarboxyquinovic and quinovic acid glycosides from Zygophyllum album

Cited by 24 publications

References 15 publications

A new lignan from Zygophyllum aegyptium

A new lignan from Zygophyllum aegyptium

Medicinal halophytes: potent source of health promoting biomolecules with medical, nutraceutical and food applications

Phytochemical Investigation and Molluscicidal Activity of Oreopanax Reticulatum Donn

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