Two New Nitrogen-Containing Glycosides From Stixis scandens.

Phytochemical investigation of a methanol extract of Stixis scandens stems and leaves led to the isolation of 3 nitrogen-containing compounds (1 - 3) and 6 phenolics (4 - 9), which included 2 new glycosides, one a phenolic amide glucoside, scandemide (1), and the other an indole alkaloid glycoside, stixilenin (2). Their structures were elucidated by spectroscopic (1D- and 2D-NMR) and spectrometric (HR-ESI-MS) analyses, and acid hydrolysis. The isolated compounds were evaluated for their inhibitory effects on nitric oxide production in lipopolysaccharide-induced RAW264.7 cells. [ABSTRACT FROM AUTHOR]