Macro- and micromorphology of leaf and stem of Nitraria retusa

The macro- and micromorphology of the leaf and stem of Nitraria retusa [Forssk.] Asch. are presented

Macro and micromorphology of leaf and stem of nitraria retusa

The macro- and micromorphology of the leaf and stem of Nitraria retusa [Forssk.] Asch. are studied in order to demonstrate the diagnostic features of these organs by which they could be identified and characterized in the entire and powdered forms

8-Hydroxyglucosylharmine from the Egyptian peganum harmala L seeds

8-hydroxyglucosylharmine was isolated from the methanolic extract of the Egyptian Peganum harmala L. seeds. This glucosidic beta-carboline alkaloid is of common occurrence in seedling and callus derived from roots and hypocotyls, but it is a rare and minor alkaloid of the seeds. The present isolation of 8-hydroxyglucosylharmine represents the first isolation of this alkaloid from the Egyptian P. harmala L. seeds. Moreover, harmine, harmaline, harmol, and harmalol were also isolated. The structure of the isolated alkaloids were established from their physicochemical characters and spectral data

C-glycosylflavones from prosopis chilensis

Five apigenin-based C-glycosylflavones were isolated from the leaves and pods of Prosopis chilensis and identified as vicenin-1, 6-O-acetylvicenin-1, vicenin-2, vitexin and isovitexin. 6-O-acetylvicenin-1 could be a new acylated di-C-glycosylflavone and vicenin-1 is reported here for the first time in the genus Prosopis. The structures of the isolated compounds were established through spectroscopic analyses including 2D-NMR [HMQC, HMBC]

Alkaloids of glaucium arabicum

Protopine, allocryptopine, 13-oxoallocryptopine, and trans-cana-dinemethochloride dihydrate were isolated from the fruits of Glaucium arabicum Fres. and their structures were established by spectroscopic techniques. The present isolation of 13-Oxoallocryptopine represents the first report of this oxoprotopine alkaloid in genus Glaucium

Iridoid glucosides from aerial parts of Veronica persica poir in Lam growing in Egypt

From the ethyl acetate extract of the aerial parts of veronica persica poir. in Lam., aucubin, catalpol, veronicoside, amphicoside, catalposide, verproside and 6-o-veratroylcatalpol were isolated and their structures were established by chemical, chromatographic and spectroscopic methods. Veronica persica poir in Lam. can be differentiated from the other closely related Veronica species of group Agrestis by its content of catalpol esters of benzoic acid derivatives