Abstract
Hemiphragma heterophyllum Wall. is commonly used in traditional Yi herbal medicine for treating bellyache and toothache. In the current study, an unreported monoterpene glucoside, (S)-thymoquinol O-(6-O-oleuropeoyl)-β-d-glucopyranoside (1), together with 11 known glucosides were obtained from the whole herb of H. heterophyllum. Their structures were determined based on a detailed analysis of spectroscopic data and acid hydrolysis and methanolysis reactions. Bioassay results showed that compounds 1 and 10 at 40 mg/kg exhibited significant antinociceptive activity in the acetic acid-induced writhing model, with inhibitions of 59.80% and 64.07%, respectively. Moreover, five of the isolates showed moderate anti-α-glucosidase activities with IC50 values ranging from 5.67 to 46.16 μM.
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