188640-75-7

1H-Cyclopentacyclododecene-4,9-dione,1,2,3a,- 11,13-pentakis(acetyloxy)-2,3,3a,5,8,10,11,12,- 13,13a-decahydro-2,5,8,8-tetramethyl-12- methylene-,(1R,2R,3aR,5R,6E,11R,13R,13aS)-