New septanoside and 20-hydroxyecdysone septanoside derivative from Atriplex portulacoides roots with preliminary biological activities

The phytochemical investigation of a Tunisian plant Atriplex portulacoides (Chenopodiaceae) led to the isolation of two new compounds designated as portulasoid (2) and septanoecdysone (3) along with the known 20-hydroxyecdysone (20HE) (1). Their chemical structures were elucidated on the basis of extensive spectroscopic methods including ES-HRMS, 1D and 2D-NMR. The isolated compounds were finally tested for their antioxidant activity by using DPPH, ABTS+, Fe3+ and catalase assays and also for their antibacterial and anticholinesterase activities.

Graphical abstractThe phytochemical study of Atriplex portulacoides n-BuOH roots extract afforded two new compounds: portulasoid (2) and septanoecdysone (3).Figure optionsDownload full-size imageDownload as PowerPoint slide