Results 191 to 200 of about 25,726 (252)

Tandem Reaction of Tertiary Enamides as a Synthetic Strategy to Construct the Fused N-Pentacyclic Skeleton of Erythrina Alkaloid Derivatives.

Organic Letters, 2020
An exquisite protocol to the synthesis of erythrina-related structural derivatives was developed, which is composed of a nucleophilic addition of tertiary enamides to ketonic carbonyls and the trapping of acyliminium by an aromatic unit.
Hanlin Yang, Wenzhong Li, Xinming Xu, Zu‐Li Wang   +3 more
semanticscholar   +1 more source

Comprehensive review on flavonoids biological activities of Erythrina plant species

Industrial Crops and Products, 2018
Nouran M Fahmy, Eman Al-Sayed, Mohamed EL-Shazly   +2 more
exaly   +2 more sources

Three new erythrina alkaloids from the roots of Erythrina corallodendron

Journal of Asian Natural Products Research, 2021
Three new erythrina alkaloids, eryalkals A (1), B (2), and C (3), were isolated from the roots of Erythrina corallodendron L. Their structures, including their absolute configurations, were elucidated based on analyses of HR-ESI-MS, 1D/2D NMR and single-crystal X-ray diffraction techniques.
Guo-Ru, Shi, Wen-Qian, Ding, Shi-Shan, Yu   +2 more
openaire   +2 more sources

Erythrina and Related Alkaloids

2010
The chemistry of Erythrina and related alkaloids from 1996 through to mid-2009 has been reviewed, with a particular focus on the preparation of Erythrina alkaloids possessing an aromatic D ring. A number of synthetic approaches to alkaloids bearing an aromatic D ring have been reported, including some asymmetric routes.
Andrew F, Parsons, Matthew J, Palframan
openaire   +2 more sources

Two Erythrina alkaloids and three diarylpropanoids from Erythrina velutina

Tetrahedron, 2021
Abstract Two new Erythrina alkaloid glycosides, 1 and 2, and three new diarylpropanoid glycosides 12–14 together with nine known compounds were isolated from the MeOH extracts of the seeds of Erythrina velutina. The structures and absolute configurations of these new compounds were elucidated through comprehensive spectroscopic analyses as well as ...
Kazuyuki Todoroki, Mariko Funasaki, Tadahiro Etoh, Keiichi Matsuzaki, Ayumi Ohsaki   +4 more
openaire   +1 more source

Breaking Down the Barriers to a Natural Antiviral Agent: Antiviral Activity and Molecular Docking of Erythrina speciosa Extract, Fractions, and the Major Compound

Chemistry and Biodiversity, 2019
The in vitro cytotoxic activity in Vero cells and the antiviral activity of Erythrina speciosa methanol extract, fractions, and isolated vitexin were studied. The results revealed that E.
Nouran M. Fahmy, Eman Al‐Sayed, Saad A. Moghannem, F. Azam, M. El‐Shazly, A. Singab   +5 more
semanticscholar   +1 more source

Novel antioxidant peptides obtained by alcalase hydrolysis of Erythrina edulis (pajuro) protein.

The Journal of the Science of Food and Agriculture, 2019
BACKGROUND Oxidative reactions are responsible for the changes in quality during food processing and storage. Oxidative stress is also involved in multiple chronic diseases, such as cardiovascular and neurodegenerative disorders, diabetes, cancer, and ...
Arturo Intiquilla, Karim L Jiménez-Aliaga, F. Gúzman, C. Álvarez, A. Zavaleta, Víctor Izaguirre, B. Hernández-Ledesma   +6 more
semanticscholar   +1 more source

The genus Erythrina L.: A review on its alkaloids, preclinical, and clinical studies

Phytotherapy Research, 2019
Erythrina L. genus (Fabaceae) comprises about 115 species, and it has been extensively studied, mainly because of its alkaloids, which have pharmacological properties. References demonstrated that Erythrina spp.
Douglas F. Rambo, Renata Biegelmeyer, Natally S B Toson, R. Dresch, P. Moreno, A. Henriques   +5 more
semanticscholar   +1 more source

Synthesis Pathways to Erythrina Alkaloids and Erythrina Type Compounds

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
openaire   +2 more sources

Erythrina sp.III: Chemical Constituents of Erythrina Suberosa Roxb.Seeds

Journal of Pharmaceutical Sciences, 1970
Abstract A phytochemical investigation of Erythrina suberosa seeds has resulted in the isolation of erythraline, erysodine, erysotrine, and hypaphorine.This is the first time that erysotrine has been found to occur naturally, although it is well known as a conversion product of other eryso-alkaloids.The alkaloidal constituents were found to vary in
Harkishan Singh, Amrik Singh Chawla
openaire   +1 more source