(1R,3aα)-Octahydro-7aβ-methyl-1β-[(S)-1-methyl-2-oxopropyl]-5-oxo-1H-indene-4α-propanoic acid

3-[(1R,3aS,4S,7aR)-7a-Methyl-5-oxo-1-[(S)-1-methyl-2-oxopropyl]octahydro-3aH-inden-4-yl]propionic acid