Synonyms: 2,4(1H)-Cyclo-3,4-secoakuammilan-16-carboxylicacid, 3,17-epoxy-17-hydroxy-1-methyl-, methyl ester, (3b,16R,17R)-; Corymine (7CI,8CI);13H-1,3,8a-(Epoxyethanylylidene)-1H-azepino[1',2':1,2]pyrrolo[2,3-b]indole-14-carboxylicacid, 4-ethylidene-2,3,4,5,7,8-hexahydro-15-hydroxy-13-methyl-, methyl ester,[1R-(1a,3a,4E,8aa,13aR*,14R*,15R*)]-; Corymin; NSC 381080