Structures of yadanziolides A, B, and C, new bitter principles from Brucea javanica.
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چکیده
منابع مشابه
Phytochemical and antimalarial screening of Brucea javanica plant extracts
The leaf, root, and stem extracts of Brucea javanica were screened for phytochemical properties and antimalarial activity, after extractions with various organic solvents. Qualitative analysis of the phytochemical constituents showed the presence of the following secondary metabolites: terpenoids, saponins, flavonoids, steroids, phenols, glycosides, alkaloids, and anthraquinones. The extracts s...
متن کاملEvaluation of Antidiabetic and Antioxidant Properties of Brucea javanica Seed
The ethanol extract of B. javanica seed was fractionated with solvents of different polarities and tested for antioxidant activities by several assays including DPPH radical scavenging activity, ferric reducing antioxidant power (FRAP), ferrous ion chelating activity (FCA), and nitric oxide radical scavenging activity (NORSA) along with their polyphenolic contents. Antidiabetic activity was eva...
متن کاملIsolation of antibabesial compounds from Brucea javanica, Curcuma xanthorrhiza, and Excoecaria cochinchinensis.
One new curcuminoid, 3'-demethoxycyclocurcumin (1), was isolated from Curcuma xanthorrhiza as an antibabesial compound, together with p-hydroxybenzaldehyde (2) and cleomiscosin A (3) from Brucea javanica and (+)-epiloliolide (4) from Excoecaria cochinchinensis. The antibabesial activities were examined in vitro, and compounds 1-4, and diminazene aceturate were studied with IC(50) values of 16.6...
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چکیده ندارد.
15 صفحه اولCarbon K edge structures of molecular crystals from first-principles: A comparison between phenanthrene and anthracene
By means of ab-initio calculations on the basis of the FPLAPW method, we compared the energy loss near edge structure (ELNES) of carbon K edges in crystalline phenanthrene and its isomer, anthracene. In these two organic compounds, different non-equivalent carbon atoms can result in distinct K edge spectra due to the different carbon-carbon bond lengths, as a characteristic behavior of the mole...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1984
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.32.4698