Tags

Type your tag names separated by a space and hit enter

Antioxidative constituents from the leaves of Hypericum styphelioides.
J Nat Prod. 2004 May; 67(5):869-71.JN

Abstract

Two new compounds have been isolated from the leaves of Hypericum styphelioides. Their structures have been established on the basis of mass spectrometry and 2D NMR techniques as 1,3,5-trihydroxy-2-(2',2'-dimethyl-4'-isopropenyl)cyclopentanylxanthone (1) and 3,5-dihydroxybenzophenon-4-beta-d-glucoside (2). Known compounds 5-O-demethylpaxanthonin (3) and 3-geranyl-1-(3-methylbutanoyl)phloroglucinol (4) were also isolated and characterized. Compounds 1-4 were evaluated for their antioxidative properties in Trolox equivalent antioxidant activity (TEAC) and chemiluminescence (CL) assays.

Authors+Show Affiliations

Gamiotea-Turro D
Center of Pharmaceutical Chemistry (CQF), 200 & 21, Atabey, Playa, PO Box 16042, Apartado 6990, La Habana, Cuba.
Cuesta-Rubio O
No affiliation info available
Prieto-González S
No affiliation info available
De Simone F
No affiliation info available
Passi S
No affiliation info available
Rastrelli L
No affiliation info available

MeSH

AntioxidantsBenzophenonesCubaGlucosidesHypericumLuminescent MeasurementsMolecular StructureNuclear Magnetic Resonance, BiomolecularOxidation-ReductionPlant LeavesPlants, MedicinalStereoisomerismXanthones

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15165152

Citation

Gamiotea-Turro, Daylin, et al. "Antioxidative Constituents From the Leaves of Hypericum Styphelioides." Journal of Natural Products, vol. 67, no. 5, 2004, pp. 869-71.
Gamiotea-Turro D, Cuesta-Rubio O, Prieto-González S, et al. Antioxidative constituents from the leaves of Hypericum styphelioides. J Nat Prod. 2004;67(5):869-71.
Gamiotea-Turro, D., Cuesta-Rubio, O., Prieto-González, S., De Simone, F., Passi, S., & Rastrelli, L. (2004). Antioxidative constituents from the leaves of Hypericum styphelioides. Journal of Natural Products, 67(5), 869-71.
Gamiotea-Turro D, et al. Antioxidative Constituents From the Leaves of Hypericum Styphelioides. J Nat Prod. 2004;67(5):869-71. PubMed PMID: 15165152.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidative constituents from the leaves of Hypericum styphelioides. AU - Gamiotea-Turro,Daylin, AU - Cuesta-Rubio,Osmany, AU - Prieto-González,Sylvia, AU - De Simone,Francesco, AU - Passi,Siro, AU - Rastrelli,Luca, PY - 2004/5/29/pubmed PY - 2004/6/25/medline PY - 2004/5/29/entrez SP - 869 EP - 71 JF - Journal of natural products JO - J Nat Prod VL - 67 IS - 5 N2 - Two new compounds have been isolated from the leaves of Hypericum styphelioides. Their structures have been established on the basis of mass spectrometry and 2D NMR techniques as 1,3,5-trihydroxy-2-(2',2'-dimethyl-4'-isopropenyl)cyclopentanylxanthone (1) and 3,5-dihydroxybenzophenon-4-beta-d-glucoside (2). Known compounds 5-O-demethylpaxanthonin (3) and 3-geranyl-1-(3-methylbutanoyl)phloroglucinol (4) were also isolated and characterized. Compounds 1-4 were evaluated for their antioxidative properties in Trolox equivalent antioxidant activity (TEAC) and chemiluminescence (CL) assays. SN - 0163-3864 UR - https://www.unboundmedicine.com/medline/citation/15165152/Antioxidative_constituents_from_the_leaves_of_Hypericum_styphelioides_ DB - PRIME DP - Unbound Medicine ER -