Chemical constituents from the bark of and their NO inhibitory activities.

Phytochemical studies led to the isolation of a new phenylpropanoid glucoside, named purpuroside (), along with eight known compounds () from the bark of . The structure of the new compound was elucidated on the basis of its spectroscopic data. The absolute configuration of compound was verified by X-ray diffraction analysis.

Triptergosidols A-D, nerolidol-type sesquiterpene glucosides from the leaves of Tripterygium wilfordii.

Four new nerolidol-type sesquiterpene glucosides, triptergosidols A-D (1-4) were isolated from the leaves of Tripterygium wilfordii. Three aglycones, named triptergerols A (1a), B (2a), and C (3a), were acquired by enzymatic hydrolysis of 1-3. The structures of nerolidol-type sesquiterpenes were elucidated on base of kinds of spectroscopic analysis, and their absolute configurations were determined by CD method.