Chinta, Ramakoteswara Rao, et al. “Total Synthesis of S (+)-Curcuphenol, S (+)-Curcuquinone and S (+)-Curcuhydroquinone”. Asian Journal of Chemistry, vol. 28, no. 4, Dec. 2015, pp. 771-8, doi:10.14233/ajchem.2016.19475.