3 结果
OBJECTIVE
To establish a method for determining the content of rubrofusarin gentiobioside in Cassia obtusifolia.
METHODS
The HPLC with Diamonsil C18 (4.6 mm x 250 mm, 5 microm) column was used, acetonitrile-THF-1% acetic acid (18: 3:79) was used as a mobile phase, with flow rate of 1 mL x min(-1),
Radical scavenging principles on 1,1-diphenyl-2-picrylhydrazyl(DPPH) radical were isolated from the seeds of Cassia tora L. Assignments of the 1H- and 13C-NMR data showed the active components to be an anthraquinone, alaternin and two naphthopyrone glycosides,
Thirteen phenolic glycosides including six new compounds were isolated from seeds of Cassia tora (Leguminosae). The structures of the new compounds, rubrofusarin triglucoside (7), nor-rubrofusarin gentiobioside (9), demethylflavasperone gentiobioside (10), torachrysone gentiobioside (11),