Isolation and identification of novel phenolic and lignan glycosides from Franch.

Phytochemical analyses of Franch. extracts using column chromatography and semi-preparative HPLC were performed. Two novel phenolic glycosides named swertiosides A and B (compounds and respectively) were isolated and characterized. Four known phenolic glycosides were also extracted (compounds -). The structural characteristics of these novel compounds were analyzed using 1D, 2D NMR, and HRMS. All six compounds have never been isolated from this particular plant species before this study. Subsequent assessment of bioactive properties suggested that compounds and exhibited moderate levels of cytotoxicity.