N-oxides of the oxindole alkaloids rhynchophylline and isorhynchophylline.
D000470:Alkaloids / Q000032:analysis*; D002855:Chromatography, Thin Layer; D003497:Cyclic N-Oxides / Q000032:analysis*; D006861:Hydrogen Peroxide; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010084:Oxidation-Reduction; D010944:Plants / Q000032:analysis*; D013045:Species Specificity; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D000470:Alkaloids; D003497:Cyclic N-Oxides; D006861:Hydrogen Peroxide