摘要:
The present invention provides a chemical compound having the structure being one selected from a group consisting of wherein R1 is one selected from a group consisting of COOCH3, COOCH2Ph, CONHCH(CH3)2 and CONHC6H5, R2 is one selected from a group consisting of H, CH3 and CH(CH3)2, R3 is one selected from a group consisting of H, CH3, CH(CH3)2 and CH2Ph, and R4 is one of CH(CH3)2 and C6H5.
摘要:
Disclosed are methods of isolation and purification of active constituents from Hsian-ssu-tsu (Abrus precatorius L.), and the therapeutical applications of the purified compounds. From the cloroform fraction of the methanolic extract of the roots of Abrus precatorius L., Abruquinones A, B, D, E, F, which are shown as Compounds I through V, respectively, as follows: ##STR1## were isolated and identified Pharmacological evaluations showed that these compounds possess an activity to inhibit platelet aggregation, as well as antiinflammatory, and antiallergic activities.
摘要:
The present invention provides a chemical compound having the structure being one selected from a group consisting of wherein R1 is one selected from a group consisting of COOCH3, COOCH2Ph, CONHCH(CH3)2 and CONHC6H5, R2 is one selected from a group consisting of H, CH3 and CH(CH3)2, R3 is one selected from a group consisting of H, CH3, CH(CH3)2 and CH2Ph, and R4 is one of CH(CH3)2 and C6H5.
摘要:
The fresh seeds obtained from the fresh fruits of Garcinia subelliptica, were extracted with chloroform at room temperature. The CHCl3 extract was concentrated under reduced pressure to afford a brown residue. This residue was subjected to column chromatography (silica gel) and eluted with appropriate solvent system to give two phloroglucinol derivatives (Compounds 1 and 4). Compound 1 exhibited potent inhibitory effects on the release of β-glucuronidase and lysozyme from rat neutrophils stimulated with formyl-Met-Leu-Phe(fMLP)/cyto-chalasin B (CB). Compound 1 also exhibited potent inhibitory effect on the superoxide anion generation in rat neutrophils stimulated with fMLP/CB. Compound 4 exhibited potent inhibitory effect on NO production in lipopolysaccharide (LPS)/interferon-γ (IFN-γ)-activation in N9 cells. These Compounds may be developed as anti-inflammatory, anti-cancer agent, cure for ageing, and Alzheimer's disease treatment drugs.
摘要:
Disclosed are methods of providing antiinflammatory activity and inhibiting allergic reaction by administering Abruquinones A, B, D, E, or F to a subject in need thereof.