(1S)-1aα,2,5,5a,6,9,10,10aα-Octahydro-5β,5aβ,6β-trihydroxy-1α,4-bis(hydroxymethyl)-1β,7,9α-trimethyl-1H-2α,8aα-methanocyclopenta[a]cyclopropa[e]cyclodecen-11-one

1H-2,8a-Methanocyclopenta[a]cyclopropa[e]cyclodecen-11-one, 1a,2,5,5a, 6,9,10,10a-octahydro-5,5a,6-trihydroxy-1,4-bis(hydroxymethyl)-1,7,9-tr imethyl-, [1S-(1alpha,1aalpha,2alpha,5beta,5abeta,6beta,8aalpha,9alpha ,10aalpha)]-