1H-Cycloundec(d)isoindol-1-one, 15-(acetyloxy)-2,3,3a,4,5,6,6a,9,10,11,12,15-dodecahydro-6-hydroxy-4,10,12-trimethyl-5-methylene-3-(phenylmethyl)-, (3R*,3aS*,4R*,6R*,6aS*,7E,10R*,12R*,13E,15S*,15aS*)-