15α-Hydroxy-20-oxo-6,7-seco-ent-kaur-16-en-1,7α(6,11α)-diolide

15α-Hydroxy-20-oxo-6,7-seco-ent-kaur-16-en-1,7α(6,11α)-diolide (compound 2) is an enantio-kaurene diterpenoid (ent -kaurene diterpenoid), which can be isolated from Rubescens rubescens. 15α-Hydroxy-20-oxo-6,7-seco-ent-kaur-16-en-1,7α(6,11α)-diolide has cellular activity against EC-1, U87, A549, MCF-7 and HeLa cell lines Toxicity, IC50s are 37.69 μM, 79.362 μM, 80.07 μM, 197.35 μM, 462.13 μM, and 180.09 μM respectively[1].