(3aR,5aS,8R,9aR)-3a-Hydroxy-8-(1-hydroxy-1-methyl-ethyl)-5a-methyl-3a,5a,6,7,8,9-hexahydro-3H-indeno[7a,1-b]furan-2-one

Acetic acid (3aR,5aS,8R,9aR)-8-(1-acetoxy-1-methyl-ethyl)-5a-methyl-2-oxo-2,3,6,7,8,9-hexahydro-5aH-indeno[7a,1-b]furan-3a-yl ester