Synonyms: 5bH-[1,3]Dioxino[5'',4'':2',3']oxireno[4',4'a][1]benzopyrano[5',6':6,7]indeno[1,2-b]indol-5b-ol,1,4a,4b,6,7,7a,8,13,13b,13c,14,16a-dodecahydro-1,1,13b,13c-tetramethyl-3-(2-methyl-1-propenyl)-,[3S-(3a,4ab,4bb,5aR*,5ba,7ab,13ba,13cb,16aa)]-; Terpendole K