1 8NH 2-chloro-4-[(7r,7as)-7-hydroxy-1,3-dioxotetrahydro-1h-pyrrolo[1,2-C]imidazol-2(3h)-yl]-3-methylbenzonitrile 1.000 2 LG7 4-[(7r,7as)-7-hydroxy-1,3-dioxotetrahydro-1h-pyrrolo[1,2-C]imidazol-2(3h)-yl]-1-naphthonitrile 0.760 3 C16 4-(4-methyl-1,3-dioxo-1,3-dihydro-2h-isoindol-2-yl)benzonitrile 0.708