(3aS-(3aalpha,4beta,5beta,7beta,7aalpha))-4-(octahydro-5-hydroxy-4,7-dimethyl-1,3-dioxo-4,7-epoxy-2H-isoindol-2-yl)-2-iodobenzonitrile
(3as-(3aalpha,4beta,5beta,7beta,7aalpha))-4-(octahydro-5-hydroxy-4,7-dimethyl-1,3-dioxo-4,7-epoxy-2h-isoindol-2-yl)-2-iodobenzonitrile