3 resultados
OBJECTIVE
To study the preparation of anemonin from Ranunculus japonicus Thunb.
METHODS
The best conditions of preparation for anemonin were optimized with monosyllabic experiments, such as using the purity of anemonin as a index for best selection of dying tempreture and the extraction ratio as
OBJECTIVE
To isolate and determine the chemical constituents of Ranunculus japonicus in Liupan Mountain, Ningxia province, China.
METHODS
The herb was extracted with ethanol by ultrasonic bath. The extractives were divided to petroleum ether, ethyl acetate, n-butanol parts. The first two parts were
OBJECTIVE
To isolate and determine the chemical constituents from Ranunculus japonicus.
METHODS
Compounds were isolated by column chromatography, and identified by MS, NMR data.
RESULTS
Nine compounds were obtained andelucidated as scoparone (1), tricin (2), protocatechuic acid (3), luteolin (4),