Synonyms: 2H-3,13-Methanooxireno[9,10]azacycloundecino[5,4-b]indole,13-ethyl-1a,4,5,10,11,12,13,13a-octahydro-, (1aS,13R,13aR)- (9CI);2H-3,13-Methanooxireno[9,10]azacycloundecino[5,4-b]indole,13-ethyl-1a,4,5,10,11,12,13,13a-octahydro-, [1aS-(1aR*,13S*,13aS*)]-;(-)-Ervayunine; Ervayunine