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Jiadifenlactone A (1), the first example of cleavage of bond [4, 9] of the seco-prezizaane-type sesquiterpenoid with a unique 9-membered ring moiety, together with its biosynthetic related compound 2, were isolated from the fruits of Illicium jiadifengpi. The structure of 1 and its relative configuration were determined by spectroscopic methods and single-crystal X-ray diffraction analysis. The inhibitory...
Henrylactone F (1), an unusual nor-sesquiterpene lactone, together with a pair of stereoisomers, henrylactone G (2) and anislactone B (3), was discovered from the fruits of Illicium henryi. Their structures were elucidated based on extensive spectroscopic data analyses as well as X-ray diffraction. The anti-hepatitis B virus (HBV) activity of the isolates against the HBV transfected Hep G2.2.15 cell...
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