5H-Cyclopropa[3,4]benz[1,2-e]azulen-5-one, 9,9a-bis(acetyloxy)-3-[(ace tyloxy)methyl]-1,1a,1b,2,4a,7a,7b,8,9,9a-decahydro-2,4a,7b-trihydroxy- 1,1,6,8-tetramethyl-, [1aR-(1aalpha,1bbeta,2beta,4abeta,7aalpha,7balph a,8alpha,9beta,9aalpha)]-