4 結果
Swertia corymbosa locally called as Shirattakuchi have a long history of use in Ayurveda herbal preparations in Indian traditional system of medicine. It has been used in folklore medicine for the treatment of diabetes.
The present study aimed to investigate the effect of the methanolic extract of
Phytochemical investigation of the CHCl3 fraction of Swertia corymbosa resulted in the isolation of a new 3-allyl-2,8-dihydroxy-1,6-dimethoxy-9H-xanthen-9-one (1), along with four known xanthones, gentiacaulein (3), norswertianin (4), 1,3,6,8-tetrahydroxyxanthone (5), and 1,3-dihydroxyxanthone (6).
OBJECTIVE
To study the active constituents of Swertia davidi Franch..
METHODS
Chromatography was used to isolate and purify the chemical components, their structures were identified by spectral analysis.
RESULTS
Three compounds were identified as 1,7-dihydroxy-3,8-dimethoxyxanthone (gentiacaulein)
OBJECTIVE
To study the major chemical constituents from the whole herb of Swertia kauitchensis Franch.
METHODS
Compounds were separated and purified with silica gel column and microreticular resin, and their structures were elucidated on the basis of spectroscopic evidence (UV, IR, MS,