5,6,7-Tris(acetyloxy)decahydro-4a,8-dimethyl-3-methyleneazuleno(6,5-b)furan-2(3H)-one (3aR-(3aalpha,4abeta,5beta,6alpha,7alpha,7aalpha,8alpha,9aalpha))- 72264-72-3 Azuleno(6,5-b)furan-2(3H)-one, 5,6,7-tris(acetyloxy)decahydro-4a,8-dimethyl-3-methylene-, (3aR-(3aalpha,4abeta,5beta,6alpha,7alpha,7aalpha,8alpha,9aalpha))-