• Publications
  • Influence
Chemistry of the Genus Plectranthus
This review presents the phytochemical constituents of the genus Plectranthus reported up to 1999. Only a tetrameric derivative of caffeic acid was isolated from P. japonicus, but a group ofExpand
Biodegradable pH-responsive alginate-poly (lactic-co-glycolic acid) nano/micro hydrogel matrices for oral delivery of silymarin
Abstract This study involves the development and characterization of a series of sodium alginate-based pH-responsive hydrogel microspheres encapsulating poly( d , l -lactic-co-glycolic acid) (PLGA)Expand
A lupane triterpenoid from Maerua oblongifolia
Separation of the extract of Maerua oblongifolia afforded, in addition to known compounds, three lupane triterpenoids; one of them is new natural product, which was identified, by one and twoExpand
Sesquiterpene lactones and kaurane glycosides from Francoeuria crispa.
Abstract The aerial parts of Francoeuria crispa gave, in addition to known sesquiterpene lactones, two new ones. From the polar parts a large amount of two diterpene glycosides derived fromExpand
Dammarane triterpenes from Cleome africana
Abstract An extract of the aerial parts of Cleome africana afforded in addition to known compounds two triterpenes of the dammarane type. The structures were elucidated using high field NMRExpand
Sucrose diester of aryldihydronaphthalene-type lignans from Echium angustifolium Mill. and their antitumor activity.
Four previously undescribed sucrose diester of aryldihydronaphthalene-type lignans, named echiumins A-D, were isolated from the butanol fraction of Echium angustifolium Mill, in addition to a knownExpand
Chemical Diversity and Biological Activities of Marine Sponges of the Genus Suberea: A Systematic Review
TLDR
A comprehensive literature survey covering the period of 1998–2018, focusing on the chemistry and biological/pharmacological activities of marine natural products from marine sponges of the genus Suberea, with special attention to the biogenesis of the different skeletons of halogenated compounds, is presented. Expand
Gas chromatography-mass spectrometry analysis, antimicrobial, anticancer and antioxidant activities of n-hexane and methylene chloride extracts of Senna italica -
The current study was aimed to investigate the antimicrobial, anticancer, and antioxidant activities of the n-hexane and methylene chloride extracts from Senna italica as well as the characterizationExpand
A novel podophyllotoxin lignan from Justicia heterocarpa.
TLDR
Structures were elucidated by spectroscopic methods, and the structure of the new lignan was confirmed by single crystal X-ray diffraction studies, which have shown that there is a H-bonding stabilized dimer. Expand
EFFECT OF PHOTO-OXYGENATION ON BIOLOGICAL ACTIVITIES OF SOME COMMERCIAL EGYPTIAN ESSENTIAL OILS
The components of five common commercial Egyptian essential oils; caraway, cumin, basil, thyme, and rose oils, were identified using gas chromatography/ mass spectrometry (GC/MS) and Kovats retentionExpand
...
1
2
3
4
5
...