4 rezultatov
The title compound {systematic name: 4-[(3S,5S,8R,9S,10R,13R,14S,17S)-3,5,14-trihy-droxy-10,13-dimethyl-hexa-deca-hydro-1H-cyclo-penta-[a]phenanthren-17-yl]furan-2(5H)-one}, C(23)H(34)O(5), was isolated from the roots of Periploca sepium Bunge, a famous Chinese traditional herbal medicine. The three
OBJECTIVE
To study the chemical constituents of Periploca forrestii.
METHODS
The constituents were separate using such various column chromatographic techniques as silica gel, RP-18 silica gel, MCI and Sephadex LH-20. Their structures were identified by such methods as spectral analysis.
RESULTS
Ten
OBJECTIVE
To study the constituents of the stems of Periploca forrestii.
METHODS
The compounds were separated and purified by silica gel column chromatography, recrystallization and high-performance liquid chromatography. The structures were identified by various spectroscopic methods.
RESULTS
Nine
BACKGROUND
During a screening of Chinese plants traditionally used for the treatment of cancer and related diseases, extracts of the root bark of Periploca sepium Bunge showed strong cytotoxic activity.
OBJECTIVE
Isolate and identify cytotoxic compounds from P. sepium and investigate the effects and