Iridoid glycosides from Thunbergia grandiflora.
- L. Ismail, M. El-Azizi, T. Khalifa, F. Stermitz
- ChemistryPhytochemistry
- 1 July 1996
Isolation and synthesis of an α-malamic acid derivative from Justicia ghiesbreghtiana
- L. Ismail, P. Lorenz, F. Stermitz
- Chemistry
- 31 July 1998
A polar extract of leaves of Justicia ghiesbreghtiana yielded N-(2-hydroxy-4,5-dimethoxyphenyl)-(S)-α-malamic acid, 1. Incomplete spectral analysis yielded a hypothetical structure, which was then…
An amide of l-threo-γ-hydroxyglutamic acid from Justicia ghiesbreghtiana
- P. Lorenz, F. Stermitz, L. Ismail
- Chemistry
- 1 September 1999
LC-ESI-QTOF-MS/MS of Holoptelea integrifolia (Roxb.) Planch. leaves and In silico study of phenolic compounds' antiviral activity against the HSV1 virus
- F. Mahrous, H. Mohammed, Rehab Sabour, L. Ismail
- Biology, ChemistryAzhar International Journal of Pharmaceutical and…
- 28 November 2021
LC-ESI-QTOF-MS/MS technique was utilized for tentative identification of phenolic compounds in the ethyl-acetate extract of Holoptelea integrifolia (Roxb.) Planch, and Diosmin displayed the highest binding scores with proper fitting via hydrogen bonds with some of the important key residues.
Verbascoside derivatives and iridoid glycosides from Penstemon crandallii.
- L. Ismail, M. El-Azizi, T. Khalifa, F. Stermitz
- ChemistryPhytochemistry
- 1 August 1995
Chemical profiling of polyphenols in Thunbergia alata and in silico virtual screening of their antiviral activities against COVID-19
- Fatma Ahmed Abd El Aal, H. Mohammed, M. Ibrahim, L. Ismail
- Chemistry
- 4 June 2021
In silico virtual screening of both flavonoid and coumarins as the most common classes of polyphenols; flavonoids have the best potential to act as COVID-19 Mpro & MTase inhibitors; especially Kaempferol-3-O-(6-p-coumaroyl)-glucoside.
Isolation and synthesis of an alpha-malamic acid derivative from Justicia ghiesbreghtiana.
- L. Ismail, P. Lorenz, F. Stermitz
- ChemistryJournal of Natural Products
- 1998
Coupling of the trifluoroacetate of malic anhydride with an arylamine provided the key to regiospecific preparation of the alpha- rather than beta-malamic acids.
An amide of L-threo-gamma-hydroxyglutamic acid from Justicia ghiesbreghtiana.
- P. Lorenz, F. Stermitz, L. Ismail
- ChemistryPhytochemistry
- 1999
A new amide of threo-gamma-hydroxyglutamic acid, justiciamide, was isolated from Justicia ghiesbreghtiana and shown to be (-)-N-(2-hydroxy-4,5-dimethoxyphenyl)-(2 S,4 S)-gamma-hydroxyglutamic acid.…