10247-71-9

(1aR,3R,7aS,10aS,11S,11aR)-2,3,7,7a,10,10a,11,11a-Octahydro-11-hydroxy-1a-methyl-10-methylene-5H-3,6-methenofuro[3,2-g]oxireno[d]oxacycloundecin-5,9(1aH)-dione