Browsing by Author "El-Raey M."

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    Acylated flavonol diglucosides from Ammania auriculata
    (Verlag der Zeitschrift fur Naturforschung, 2015) Nawwar M.; Ayoub N.; El-Raey M.; Zaghloul S.; Hashem A.; Mostafa E.; Eldahshan O.; Lindequist U.; Linscheid M.W.; National Research Center; Department of Phytochemistry and Plant Systematics; El Bohooth Str.; P.O. 12622; Dokki; Cairo; Egypt; Faculty of Pharmacy; Department of Pharmacognosy; Ain-Shams University; Cairo; Egypt; October University for Modern Sciences and Arts; 6th October City; Egypt; Department of Pharmacognosy; Faculty of Pharmacy; Institute of Pharmacy; Pharmaceutical Biology; Ernst-Moritz-Arndt-Universit�t Greifswald; Greifswald; Germany; Laboratory of Applied Analytical and Environmental Chemistry; Department of Chemistry; Humboldt-Universit�t zu Berlin; Berlin; Germany
    Chemical investigation of the extract of the whole Ammania auriculata plant resulted in the identification of 13 polyphenols, including the hitherto unknown flavonoids, kaempferol 3-O-?-(6?-galloylglucopyranoside)- 7-O-?-glucopyranoside, and its quercetin analogue. The structures of all isolates were elucidated by conventional methods, spectroscopic analysis, including 1D and 2D NMR, and by HRESI-MS as well.