57105-59-6 7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide, N-(dimethylsulfamoyl)- N-(Dimethylsulfamoyl)-7-oxabicyclo(2.2.1)heptane-2,3-dicarboximide N-(N',N'-Dimethylsulfamyl)-3,6-endoxohexahydrophthalimide