Synonyms: 3a,6-Epoxy-3aH-cyclopentacyclododecene-4,11-dione,2,3,7,8-tetrahydro-2,5,8,8,12-pentamethyl-, [2R-(2R*,3aR*,9E,12Z)]-; 3ab,6-Epoxy-3aH-cyclopentacyclododecene-4,11-dione,2,3,7,8-tetrahydro-2a,5,8,8,12-pentamethyl-, (+)- (8CI); (+)-Jatrophone; Jatrophone; NSC 135037