Showing structure for 3-(acetyloxy)-6-methyl-5-[(2-methylbut-2-enoyl)oxy]-2-{[4,5,10-tris(acetyloxy)-4a,9-bis[(acetyloxy)methyl]-2,2,6a,6b,9,12a-hexamethyl-1,3,4,5,6,7,8,8a,10,11,12,12b,13,14b-tetradecahydropicen-3-yl]oxy}oxan-4-yl 2-methylbut-2-enoate