(2E,6S)-6-((1R,5Z,3aS,9R,10Z,12aR)-1,2,3,3a,4,7,8,9,12,12a-decahydro-9-hydroxy-3a,6,10-trimethylcyclopentanocycloundecen-1-yl)-2-methylhept-2-enoic acid
(2e,6s)-6-((1r,5z,3as,9r,10z,12ar)-1,2,3,3a,4,7,8,9,12,12a-decahydro-9-hydroxy-3a,6,10-trimethylcyclopentanocycloundecen-1-yl)-2-methylhept-2-enoic acid