1004-40-6 
 
48160-61-8 
 
126-81-8 
 
5-(4,4-dimethyl-2,6-dioxocyclohexyl)-6-(4-(5-(4,4-dimethyl-2,6-dioxocyclohexyl)-4-oxo-2-thioxo-2,3,4,7-tetrahydro-1H-pyrrolo2,3-dpyrimidin-6-yl)phenyl)-1,7-dihydro-2H-pyrrolo2,3-dpyrimidine-2,4(3H)-dione