Wifortrine and Euonine isolated from Tripterygium wilfordii Hook. f. Wilfortrine and euonine (40.80 mg/(kg.d) x 4d ip) showed marked depressant effects on humoral mediated immunity using the hemolysin reaction as indices. Wilfortrine (160 mg/kg.d x 9d ip) exhibited a depressant effect on graft vs
A novel liquid chromatography-atmospheric-pressure chemical ionization-mass spectrometry (LC-APCI/MS) method was developed and validated for the simultaneous determination of four sesquiterpene pyridine alkaloids (wilfortrine, wilfordine, wilforgine and wilforine) in human plasma. The
OBJECTIVE
To study the chemical constituents of the root bark of Tripterygium hypoglaucum.
METHODS
Column chromatography was used to separate the chemical constituents. The structures were determined by application of spectroscopic (NMR, MS) and chemical methods.
RESULTS
Eleven compounds were
Wilfortrine, wilfordine, wilforgine and wilforine are four major bioactive sesquiterpene alkaloids in Tripterygium wilfordii Hook. F. The first analytical determination of the four major bioactive alkaloids is described. The four alkaloids are well-resolved within 15 min using the developed HPLC
A simple, comprehensive, and highly selective MEKC method has been developed for simultaneous analysis of seven bioactive components (triptolide, wilfortrine, wilfordine, wilforgine, wilforine, triptophenolide, and triptonide) in the root extracts of Tripterygium wilfordii Hook. F. (TWHF) and
This paper developed a novel, sensitive, and selective ultra-performance liquid chromatography-triple quad mass spectrometry method to simultaneously determine seven effective constituents (triptolide, triptophenolide, celastrol, wilforgine, wilforine, wilfordine and wilfortrine) of Tripterygium
A sensitive and selective liquid chromatography tandem mass spectrometric method was developed and validated for the simultaneous determination of five pyridine alkaloids contained in tripterygium glycosides tablets (triptolide, wilforine, wilforgine, wilfording and wilfortrine) in dog plasma. The
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