Daphnane‐Type Diterpenoids from the Flower Buds of Daphne genkwa

Abstract Three new daphnane‐type diterpenoids, genkwanines M–O ( 1 – 3 , resp.), together with seven known daphnane‐type diterpenoids, genkwanines D and H, genkwaine F, genkwadaphnine, yuanhuatine, yuanhuafine, and yuanhuapine ( 4 – 10 , resp.), were isolated from the flower buds of Daphne genkwa during a phytochemical investigation. The structures of the new compounds were elucidated on the basis of spectroscopic analyses, especially 2D‐NMR spectra (HSQC, HMBC, and NOESY).