Chem. Pharm. Bull. 53(5) 579—581 (2005)
نویسندگان
چکیده
Thai name: Huun-Hai) is a shrub that grows up to 1.5 m high, distributed in Northeastern Thailand. It is used in Thai traditional medicine for anti-fever purposes, as well as an anti-inflammatory agent. In the course of our continuing studies on Thai medicinal plants, the constituents of this plant were investigated. To the best of our knowledge, no phytochemical study has been carried out on this species. However, previous phytochemical investigation of plants in this genus showed the presence of alkaloids, flavonoids and triterpenoids. The present paper deals with the isolation and structural determination of seven compounds, including two new acetophenone glycosides (1, 2), two known flavans (3, 4), one known flavonol glycoside (5), and two known megastigmane glucosides (6, 7) from the aerial portion of this plant.
منابع مشابه
Chem. Pharm. Bull. 53(6) 714—716 (2005)
tion, stable radicals have the advantage that their concentrations are readily and directly measurable. Among them a stable free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH) was investigated as a reactive hydrogen acceptor and further found to be useful for the antioxidant determination. Since then DPPH has been mainly used to examine radical scavenging activity of antioxidative vitamins and po...
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The size distribution of new vesicles formed after addition of oleate in different forms to preformed egg yolk phosphatidylcholine (EggPC) vesicles was studied by gel exclusion chromatography. The addition of oleate to preformed vesicles resulted in the formation of new small vesicles. Fission of preformed vesicles incorporated by oleate and partial solubilization of the vesicles by addition of...
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