A complex of 5-hydroxypyrrolidin-2-one and pyrimidine-2,4-dione isolated from Jatropha curcas

Staubmann, Ruth; Schubert‐Zsilavecz, Manfred; Hiermann, A.; Kartnig, Theodor

doi:10.1016/s0031-9422(98)00531-7

Cited by 49 publications

(22 citation statements)

References 7 publications

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“…The most frequently used adsorption isotherms are Frumkin, Temkin, Freundlich, Flory Huggins and Langmuir Isotherms. However, only Langmuir Isotherms is reported in the present study, while other adsorption methods were evaluated and reported elsewhere [26,27]. Langmuir gives an expression for the concentration to the degree of surface coverage ( ) according to Equation 3 [28]:…”

Section: Adsorption Isothermmentioning

confidence: 99%

Inhibition of mild steel corrosion using Jatropha Curcas leaf extract

Ajayi¹,

Odusote²,

Yahya³

2014

J. Electrochem. Sci. Eng.

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Section: Adsorption Isothermmentioning

confidence: 99%

Inhibition of mild steel corrosion using Jatropha Curcas leaf extract

Ajayi¹,

Odusote²,

Yahya³

2014

J. Electrochem. Sci. Eng.

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“…20) In a previous work, Kouno group 20) obtained 6-(N-ethyl-2-pyrrolidinone-5-yl)-epicatechin-3-O-gallate by condensation between epicatechin-3-O-gallate and 1-ethyl-5-hydroxy-2-pyrrolidinone, which was spontaneously produced from the Strecker aldehyde of theanine, in acidic aqueous solution. 5-Hydroxypyrrolidin-2-one has been isolated from several higher plants including Jatropha curcas 21) and Pteridium aquillinum. 22) Thus we suggest that compounds 1 and 2 may be produced by condensation between (Ϫ)-epicatechin and 5-hydroxypyrrolidin-2-one in an acidic condition.…”

Section: Notesmentioning

confidence: 99%

Flavan-3-ols Having a .GAMMA.-Lactam from the Roots of Actinidia arguta Inhibit the Formation of Advanced Glycation End Products in Vitro

Jang

Lee

et al. 2009

Chem. Pharm. Bull.

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“…Furthermore, the obtained spectral data for the known isolated compounds were consistent with the reported literature; they were unambiguously identified as jatrophadiketone (1) [11], β.sitosterol (2) [12,13], curcuson D (3) [14], curcuson C (4) [14], naringenin (5) [15], β.sitosterol glucoside (6) [16], spruceanol (7) [17], propacin (8) [18,19], cleomiscosin B (9) [18,19], cleomiscosin A (10) [18,19], apigenin (11) [20], uracil (12) [21,22,23], cynaroside (13) [24], linarin (14) [25,26], hovetricoside C (16) [27], N-methyltryptamine (17) [28], N-methyltyramine (19) [29], hordenine (20) [30], hordenine HCL (21) and N-methyltyramine HCL (22) [compounds 21 and 22 were identical to the standard samples (Sigma-Aldrich, USA), as shown by 1 H NMR and TLC. ].…”

Section: Structure Elucidationmentioning

confidence: 99%

Phytochemical and Biological Investigation of <em>Jatropha pelargoniifolia</em> Root Native to the Kingdom of Saudi Arabia

Aati¹,

Gamal²,

Kayser³

2018

Preprint

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Extensive phytochemical and chromatographic analysis of different root fractions of Jatropha pelargoniifolia Courb. (Euphorbiaceae) resulted in the isolation and identification of 22 distinct secondary metabolite compounds. Two new compounds, 6-hydroxy-8-methoxycoumarin-7-O-β-D-glycopyranoside and (3-(2-(methylamino) ethyl)-1H-indol-2-yl) methanol, were isolated and identified for the first time from a natural source. In addition, other known compounds, such as hovetricoside C and Nmethyltryptamine were isolated from Euphorbiaceae, and hordenine, Nmethyltyramine, their salts, cynaroside and linarin were identified in Jatropha spp. for the first time. Some isolated metabolites, such as β-sitosterol, β-sitosterol glucoside, curcusons D and C, naringenin, apigenin, cleomiscosins B and A, spruceanol, propacin, jatrophadiketone, and uracil were previously identified in various Jatropha species. The structures of the isolated compounds were determined using different spectroscopic techniques. The anti-inflammatory, antinociceptive, antipyretic, and antioxidant activities were evaluated for some adequately available isolated compounds. Compounds showed significant antinociceptive activity compared with the standard analgesic drug indomethacin. The edema size was significantly reduced (p< 0.05-0.001) in the animals treated with low doses (5 and 10 mg/kg) of the isolated compounds compared with those treated with a high dose (100 mg/kg) of standard anti-inflammatory drug (phenylbutazone). Furthermore, all tested compounds showed a significant (p< 0.05-0.001) reduction in the rectal temperature of hyper-thermic mice.

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A complex of 5-hydroxypyrrolidin-2-one and pyrimidine-2,4-dione isolated from Jatropha curcas

Cited by 49 publications

References 7 publications

Inhibition of mild steel corrosion using Jatropha Curcas leaf extract

Inhibition of mild steel corrosion using Jatropha Curcas leaf extract

Flavan-3-ols Having a .GAMMA.-Lactam from the Roots of Actinidia arguta Inhibit the Formation of Advanced Glycation End Products in Vitro

Phytochemical and Biological Investigation of <em>Jatropha pelargoniifolia</em> Root Native to the Kingdom of Saudi Arabia

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