(3S,3aS,6aR,7S,8R,9R,9aR,10aR,12R,12aS)-8-hydroxy-2,7,10,10,12pentamethyl-5,13-dioxo-6a,7,9,9a,10,10a,11,12-octahydro-3H,8H-9,12a-methanocyclopenta[1,10]cyclopropa[6,7]cyclodeca[1,2-d][1,3 ]dioxol-3-yl acetate

(1aR,1bR,2R,3R,4R,4aS,7bR,8R,9aR)-2-((tert-butyldimethylsilyl)oxy)-4,4a-dihydroxy-1,1,3,8-tetramethyl-7b-((trimethylsilyl)oxy)-1,1a,1b,2,3,4,4a,5,7b,8,9,9a-dodecahydro-6H-cyclopropa[3,4]benzo[1,2-e]azulen-6-one