V. Krishnaraju, Alluri, et al. “Hypoglycemic Activity and Brine Shrimp Lethality of (7E,11E,1R,2S,3R,4R,14S)-14-Acetoxy-3,4-Epoxycembra-7,11,15-Triene-17,2-Olide: A Metabolite of Lobophytum crassum&Dagger”;. Asian Journal of Chemistry, vol. 16, no. 3, June 2016, pp. 1311-4, https://asianpubs.org/index.php/ajchem/article/view/14372.