2,4,6,8-Tetradecatetraenoicacid,1a,2,5,5a,6,9,10,10a-octahydro-5,5a-dihydroxy-4-(hydroxymethyl)-1,1,7,9-tetramethyl-11-oxo-1H-2,8a-methanocyclopenta[a]cyclopropa[e]cyclodecen-6-ylester, [1aR-(1aa,2b,5b,5ab,6b,8aa,9a,10aa)]-