Fourteen new sesquiterpenoids, alashanoids A–H (1, 2, and 4–9), (+)-2,9-humuladien-6-ol-8-one (3b), and five pairs of enantiomers (1 and 4–7), along with eight known analogues (3a and 10–16) were isol
Three pairs of enantiomeric sesquiterpenoids, (∓)-syringanoid A (1a and 1b) and (±)-pinnatanoids A (2a and 2b) and B (3a and 3b), that represent an unprecedented 5/4/6 tricyclic backbone and a rare 6/
Fourteen new sesquiterpenoids, alashanoids A–H (1, 2, and 4–9), (+)-2,9-humuladien-6-ol-8-one (3b), and five pairs of enantiomers (1 and 4–7), along with eight known analogues (3a and 10–16) were isol
Three pairs of enantiomeric sesquiterpenoids, (∓)-syringanoid A (1a and 1b) and (±)-pinnatanoids A (2a and 2b) and B (3a and 3b), that represent an unprecedented 5/4/6 tricyclic backbone and a rare 6/