Browsing by Author "S.P.D. Dwivedi"
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PublicationArticle Antiinflammatory and antiulcer effects of Kaempferol, a flavone, isolated from Rhamnus procumbens(1988) R.K. Goel; V.B. Pandey; S.P.D. Dwivedi; Y.V. Rao[No abstract available]PublicationArticle Chemical constituents of Rhamnus procumbens and pharmacological actions of emodin(1988) S.P.D. Dwivedi; V.B. Pandey; A.H. Shah; Y.B. RaoMusizin, physcon, emodin and frangulin‐A have been isolated from the whole plant of Rhamnus procumbens and their structures established by a detailed study of spectral data and also by degradation methods. Pharmacological investigations on emodin have indicated that it possesses intestinal and cardiac stimulant, CNS depressant and analgesic activities. Such activities have not earlier been reported for emodin. This is also the first report of the isolation of these chemical constituents in Rhamnus procumbensf and the second natural occurrence of musizin. Copyright © 1988 John Wiley & Sons, Ltd.PublicationArticle Cyclopeptide alkaloids from zizyphus nummularia(1987) S.P.D. Dwivedi; V.B. Pandey; A.H. Shah; G. Eckhardt[No abstract available]PublicationArticle Flavonoids of Rhamnus procumbens and pharmacological actions of kaempferol-4'-O-methyl ether(1990) V.B. Pandey; S.P.D. Dwivedi; Y.V. Rao; R.K. Goel[No abstract available]PublicationArticle Further constituents of Rhamnus triquetra and CNS activity of emodin(1994) S.N. Ram; V.B. Pandey; S.P.D. Dwivedi; R.K. GoelChromatographic resolution of the alcoholic extract of the whole plant of R. triquetra furnished kaempferol, kaempferol-7-O-methyl ether, kaempferol-4'-O-methyl ether, emodin, physcion-8β-D-glusoside and emodin-8-β-D-glucoside. Emodin exhibited CNS depressant activity.PublicationArticle Nummularine-O, a cyclopeptide alkaloid from Zizyphus nummularia(1986) V.B. Pandey; S.P.D. Dwivedi; A.H. Shah; G. EckhardtIn addition to the known peptide alkaloid jubanine-B, a new peptide alkaloid, nummularine-O, has been isolated from the stem bark of Zizyphus nummularia and their structures have been elucidated by chemical and spectroscopic methods. © 1986.PublicationArticle Pharmacological actions of kaempferol-7-methyl ether isolated from Rhamnus Triquerta(1989) S.N. Ram; S.P.D. Dwivedi; V.B. Pandey[No abstract available]