IUPAC:(2S)-2-{[(2S,4E)-4-{[(1S,2S,4aR,8aS)-2-methyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl](hydroxy)methylidene}-1-methyl-3,5-dioxopyrrolidin-2-yl]methyl}-2-hydroxy-3-methylbutanoic acid
IUPAC:(2S)-2-{[(2S,4E)-4-{[(1S,2S,4aR,8aS)-2-methyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl](hydroxy)methylidene}-1-methyl-3,5-dioxopyrrolidin-2-yl]methyl}-2-hydroxy-3-methylbutanoic acid