Flavonoid Glycosides and their p-Coumaroyl Esters from Campylospermum calanthum Leaves

Manga, Savio S. Elo; Tih, Anastasie E.; Abderamane, Bintou; Ghogomu, R.T.; Blond, Alain; Bodo, Bernard

doi:10.1515/znc-2012-5-601

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…The 16 known compounds were identified as quercetin 3- O -(6″-galloyl)-β- d -glucopyranoside ( 4 ), quercetin 3- O -β- d -glucopyranoside ( 5 ), rhamnetin 3- O -α- l -rhamnopyranoside ( 6 ), campylospermoside C ( 7 ), catechin 7- O -gallate ( 8 ), catechin 3′- O -gallate ( 9 ), catechin 4′- O -gallate ( 10 ), rhamnocitrin- O -α- l -rhamnopyranoside ( 11 ), kaempferol 3- O -(6″-galloyl)-β- d -glucopyranoside ( 12 ), catechin ( 13 ), teasperol ( 14 ), 4- O -methylgallic acid ( 15 ), gallic acid ( 16 ), progallin A ( 17 ), procyanidin B3 ( 18 ), and procyanidin B3-3- O -gallate ( 19 ) by comparing their observed and reported NMR data, in addition to LC/MS analysis.…”

Section: Results and Discussionmentioning

confidence: 99%

Antifungal Phenols from Woodfordia uniflora Collected in Oman

Park

Pang

et al. 2020

J. Nat. Prod.

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Woodfordia uniflora is a flowering shrub unique to the Dhofar region of Oman and is used locally as a sedative and remedy for skin infection. However, no study to date has examined the pharmacological properties of this plant, and studies regarding phytochemicals present in W. uniflora are limited. Herein, phytochemical screening of the extract of W. uniflora was performed using LC/MS. Three new phenolic compounds, (±)-woodfordiamycin (1), woodfordic acid (2), and rhamnetin 3-O-(6″-galloyl)-β-d-glucopyranoside (3), together with 16 known compounds 4–19, were isolated from the antifungal fraction of the extract. The structures of the new compounds were established by NMR and HR-MS data, and their absolute configurations were established using chemical transformations, including Mosher’s method, comparison of experimental and calculated electronic circular dichroism data, and gauge-including atomic orbital NMR chemical shift calculations, followed by DP4+ analysis. The isolated compounds (1–19) were tested for antifungal activity against human fungal pathogens Cryptococcus neoformans and Candida albicans. Compounds (±)-1 and 8 showed antifungal activity against C. neoformans, with the lowest minimum inhibitory concentrations of 1.8–1.9 μM, which was ∼10-fold lower than that of the currently available antifungal drug fluconazole, while (±)-1, 8, and 19 showed antifungal activity against C. albicans.

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Section: Results and Discussionmentioning

confidence: 99%

Antifungal Phenols from Woodfordia uniflora Collected in Oman

Park

Pang

et al. 2020

J. Nat. Prod.

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“…Phenolic acid and p-coumaric acid have been identified only as phenolic glycosides (Table 2). Ferulic acid is present in the esterified and the aglycone form (Tables 2 and 3) [35,36]. Chemical shifts in the 1 H NMR spectrum of SB methanolic extract indicate the feruloyl ester.…”

Section: Organic Acidsmentioning

confidence: 99%

Metabolite and Bioactive Compounds Profiling of Meteora Sea Buckthorn Berries through High-Resolution NMR Analysis

et al. 2021

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Sea buckthorn berries (Hippophaë rhamnoides L.) (SB) are considered as a fruit with a high nutritional value with a plethora of bioactive ingredients. The present work focusses on the analysis of the whole NMR metabolic profile of SB berries grown in an organic orchard of Meteora/Greece. In parallel, this study validates/highlights qualitative characteristics of the osmotic processed berries according to the fresh fruit. The composition in bioactive metabolites of SB berries was elucidated through sophisticated high-resolution NMR spectroscopy. The lipophilic profile maintains the vitamins, flavonoid glycosides, phenolic esters and the essential lipid components of SB, while the polar profile reveals a variety of flavonoids, saccharides, organic acids, amino acids and esterified glycosides. This approach towards identification of SB bioactive ingredients may serve as basis for simultaneous profiling and quality assessment and may be applied to monitor fresh food quality regarding other food preservation methods.

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“…Farron. (Ochnaceae) [ 69 , 70 ]. Three new dimeric flavonols, namely, sparins A–C ( 6 , 54 , 55 ), have been isolated from the CHCl 3 subfraction of an EtOH extract of the S. brahuica whole plant [ 30 ].…”

Section: Chemical Components and Biological Activity Of The Isolated Substancesmentioning

confidence: 99%

Phytoconstituents and Bioactivity of Plants of the Genus Spiraea L. (Rosaceae): A Review

Kostikova

Петрова

2021

IJMS

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The genus Spiraea L. belongs to the Rosaceae Juss. family and includes more than 100 species distributed in the temperate zone and subtropical zone of the Northern Hemisphere at the center of species diversity in East Asia. Representatives of the genus are known as ornamental plants with many forms and varieties, are widely used in conventional medicine, and have a high resource potential. This review provides information on the diversity of phenolic compounds (flavonoids, phenolcarboxylic acids, and lignans), terpenoids, alkaloids, steroids, and other classes of secondary metabolites in the species of Spiraea worldwide. The article also presents little-known and hard-to-find data published in Russian concerning Spiraea phytochemistry. The biological activities of extracts and their fractions and of individual compounds having different types of biological activity (e.g., antioxidant, antibacterial, anti-inflammatory, and antifungal) are discussed. Data about biotechnological research on representatives of the genus Spiraea are presented too. The analysis of the literature showed that further chemical and pharmacological studies on Spiraea plants are quite promising.

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Flavonoid Glycosides and their p-Coumaroyl Esters from Campylospermum calanthum Leaves

Cited by 5 publications

References 10 publications

Antifungal Phenols from Woodfordia uniflora Collected in Oman

Antifungal Phenols from Woodfordia uniflora Collected in Oman

Metabolite and Bioactive Compounds Profiling of Meteora Sea Buckthorn Berries through High-Resolution NMR Analysis

Phytoconstituents and Bioactivity of Plants of the Genus Spiraea L. (Rosaceae): A Review

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