Lo, Modou, et al. “Synthesis and X-Ray Crystallography of (1R,3aR,7aR)-1-((S)-1-((2R,5S)-5-(3-Hydroxypentan-3-yl)tetrahydrofuran-2-yl)ethyl)-7a-Methyloctahydro-4H-Inden-4-One”. European Journal of Chemistry, vol. 8, no. 3, Sept. 2017, pp. 248-51, doi:10.5155/eurjchem.8.3.248-251.1602.