4,7-Epoxy-2H-[1,6]dioxacyclotridecino[2,3,4-gh]pyrrolizine-2,8(3H)-dione, dodecahydro-4,6,7-trimethyl-, (4S,6R,7R,10aS,15aR,15bR)-
C(16a)-Homo-21-norsenecionan-11,16a-dione, 12,15-epoxy-1,2,15,20-tetrahydro-, (1α,12R,15S)-
(4S,6R,7R,10aS,15aR,15bR)-Dodecahydro-4,6,7-trimethyl-4,7-epoxy-2H-[1,6]dioxacyclotridecino[2,3,4-gh]pyrrolizine-2,8(3H)-dione
Nemorensin
4,7-Epoxy-2H-[1,6]dioxacyclotridecino[2,3,4-gh]pyrrolizine-2,8(3H)-dione, dodecahydro-4,6,7-trimethyl-, [4S-(4R*,6S*,7S*,10aR*,15aS*,15bS*)]-
Nemorensine