منابع مشابه
Coumarins from Angelica lucida L.--antibacterial activities.
The first phytochemical investigation of the fruits of Angelica lucida has led to the isolation and characterization of five known coumarins (imperatorin, isoimperatorin, heraclenol, oxypeucedanin hydrate and heraclenin). All isolated compounds were identified by means of spectral and literature data. The extracts and the isolated constituents from A. lucida have been also evaluated for their a...
متن کاملBio-pesticidal and Antimicrobial Coumarins from Angelica dahurica (Fisch. Ex Hoffm)
Angelica dahurica (Fisch. Ex Hoffm) is an important traditional Chinese herb which is widely used in curing acne, ulcers, carbuncles, rheumatism, headaches and toothaches. A systematic antifungal bioassayguided fractionation of the ethyl acetate extract from A. dahurica led to the isolation of six coumarins, namely, suberosin, bergapten, alloimperatorin, xanthotoxol, 5-methoxy-8-hydroxypsoralen...
متن کاملAnti-inflammatory Activities of Coumarins Isolated from Angelica gigas Nakai on LPS-stimulated RAW 264.7 Cells
Five kinds of coumarin compounds were successfully purified from Angelica gigas Nakai by using recyclingpreparative HPLC and identified as decursin (1), decursinol angelate (2), 7-demethylsuberosine (3), marmesin (4), and decursinol (5) by NMR analyses. None of the purified compounds in ethanol showed DPPH radical scavenging activity, while the A. gigas extract (AGNEX) displayed a significant l...
متن کاملChalcones, coumarins, and flavanones from the exudate of Angelica keiskei and their chemopreventive effects.
From an ethyl acetate-soluble fraction of the exudate obtained from the stems of Angelica keiskei (Umbelliferae), 17 compounds, viz. five chalcones (1-5), seven coumarins (6-12), three flavanones (13-15), one diacetylene (16), and one 5-alkylresorcinol (17), were isolated. These compounds were evaluated with respect to their inhibitory effects on the induction of Epstein-Barr virus early antige...
متن کاملSynthesis of Functionalized Coumarins
The synthesis of functionalized 2-oxo-2H-coumarin derivatives has been studied by a one-pot reaction of o-hydroxybenzaldehyde, ethyl 2-bromoacetate and triphenylphosphine in the presence of catalytic amount of triethyl amine in EtOAc, water or under solvent free conditions. We have found the best results obtained under solvent free condition.
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ژورنال
عنوان ژورنال: Mongolian Journal of Chemistry
سال: 2014
ISSN: 2414-0082,2226-6739
DOI: 10.5564/mjc.v14i0.193