Wen-Fei Cai

New sesquiterpenes and flavonoids from the fruits of Hypericum ascyron L. with nitric oxide inhibitory activities.

Seven previously undescribed compounds (1-7), including two norsesquiterpenes (1 and 3), one cadinane-type sesquiterpene (2), one flavonoid (4), and three xanthones (5-7), along with 17 known analogs (8-24), were isolated from the ethyl acetate extract from the fruits of Hypericum ascyron L. Four pairs of enantiomers (...