Showing structure for (2e,4s,6r)-6-[(1r,1'ar,3'r,3ar,3'ar,5r,7as,7'as)-5-hydroxy-3',3'a,4,4,7a-pentamethyl-6'-oxo-decahydrospiro[indene-1,7'-indeno[1,7a-b]oxiren]-3'-yl]-4-hydroxy-2-methylhept-2-enoic acid