Phenolic derivatives from Baccharis retusa DC. (Asteraceae)
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چکیده
منابع مشابه
Structural crystalline characterization of sakuranetin--an antimicrobial flavanone from twigs of Baccharis retusa (Asteraceae).
Bioactivity-guided fractionation of an antimicrobial active extract from twigs of Baccharis retusa C. DC. (Asteraceae) yielded the flavanone 5,4'-dihydroxy-7-methoxy-flavanone (sakuranetin) as responsible for the detected activity. The structure of the bioactive compound was established on the basis of spectroscopic data analysis, including NMR and MS. Additionally, the structure of a new cryst...
متن کامل6-Oxygenated flavones from Baccharis trinervis (Asteraceae).
Baccharis trinervis (Lam.) Pers. (Family: Asteraceae alt. Compositae), used in South American folk medicine as an antiseptic, digestive and to treat snake-bites (Duke, 1999), is widely distributed from Mexico to Argentina (USDA-ARS-GRIN database, 1999). Plant material was collected from Costa Rica and supplied by Biotics Limited, University of Sussex, Brighton, UK. A voucher specimen (MNL10118)...
متن کاملA flavanone from Baccharis retusa (Asteraceae) prevents elastase-induced emphysema in mice by regulating NF-κB, oxidative stress and metalloproteinases
BACKGROUND Pulmonary emphysema is characterized by irreversible airflow obstruction, inflammation, oxidative stress imbalance and lung remodeling, resulting in reduced lung function and a lower quality of life. Flavonoids are plant compounds with potential anti-inflammatory and antioxidant effects that have been used in folk medicine. Our aim was to determine whether treatment with sakuranetin,...
متن کاملNerolidol, an antiulcer constituent from the essential oil of Baccharis dracunculifolia DC (Asteraceae).
In this study, the antiulcerogenic effect of essential oil from Baccharis dracunculifolia was evaluated using the model of acute gastric lesions induced by ethanol. The ulcerative lesion index (ULI) was significantly reduced by oral administration of the essential oil of B. dracunculifolia at doses of 50, 250 and 500 mg/kg which reduced the lesions by 42.79, 45.70 and 61.61%, respectively. The ...
متن کاملNew Flavonoids from the Exudate of Baccharis bigelovii (Asteraceae)
New Flavonoids from the Exudate of Baccharis bigelovii (Asteraceae) Francisco J. Arriaga-Giner Departamento de Qui'mica Orgänica, Universidad A utönom a de Madrid, Madrid, Spain Eckhard Wollenweber, Dagmar Hradetzky Institut für Botanik der Technischen Hochschule Darmstadt, Bundesrepublik Deutschland Z. Naturforsch. 41c, 946—948 (1986); received June 4, 1986 Baccharis bigelovii (Asteraceae), Le...
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ژورنال
عنوان ژورنال: Biochemical Systematics and Ecology
سال: 2012
ISSN: 0305-1978
DOI: 10.1016/j.bse.2011.12.014