Six new phenolic glycosides from the roots of Scrophularia ningpoensis.

Six new phenolic glycosides (1-6) and thirteen known compounds (7-19) were isolated from the roots of Scrophularia ningpoensis. Their structures were determined through comprehensive analyses of the physicochemical properties and spectroscopic data (1D NMR, 2D NMR, and HR-ESI-MS). The anti-inflammatory potential of all compounds was evaluated by determining their ability to inhibit lipopolysaccharide (LPS) induced NO production in RAW 264.7 macrophage cells. In addition, the cytotoxicity of all compounds on HepG2, 4T1 and A549 cell lines was also evaluated.