Synonyms: Nomilin(6CI,7CI);Obacunoic acid, 1-(acetyloxy)-1,2-dihydro-, e-lactone;Oxireno[4,4a]-2-benzopyrano[6,5-g][2]benzoxepin-3,5,9(3aH,4bH,6H)-trione,1-(3-furyl)decahydro-11-hydroxy-4b,7,7,11a,13a-pentamethyl-, acetate (8CI);NSC297134;Oxireno[4,4a]-2-benzopyrano[6,5-g][2]benzoxepin-3,5,9(3aH,4bH,6H)-trione,11-(acetyloxy)-1-(3-furanyl)decahydro-4b,7,7,11a,13a-pentamethyl-, [1S-(1a,3aa,4aS*,4bb,6aa,11a,11ab,11ba,13aa)]-;Oxireno[4,4a]-2-benzopyrano[6,5-g][2]benzoxepin-3,5,9(3aH,4bH,6H)-trione,11-(acetyloxy)-1-(3-furanyl)decahydro-4b,7,7,11a,13a-pentamethyl-,(1S,3aS,4aR,4bR,6aR,11S,11aR,11bR,13aS)-;