雷公藤新碱

8,11-Epoxy-9,12-ethano-11,15-methano-5H,11H-[1,9]dioxacyclooctadecino[4,3-b]pyridine-5,17(18H)-dione,10,13,14,22,23-pentakis(acetyloxy)-12-[(acetyloxy)methyl]-7,8,9,10,12,13,14,15,19,20-decahydro-21-hydroxy-8,18,21-trimethyl-,(8R,9R,10R,11S,12R,13R,14R,15S,18S,21S,22S)-