1177821-81-6 <br>2-imino-2',4-dioxo-1',2'-dihydrospiro[3-azabicyclo[3.1.0]hexane-6,3'-indole ]-1,5-dicarbonitrile
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1025247-58-8 (2Z)-4,4-dimethyl-3-oxo-2-[[4-(2,6,6-trimethyl-4-oxo-5,7-dihydroindol-1-yl)anilino]methylidene]pentanenitrile
1024333-97-8 N-(4-methylpyrimidin-2-yl)-4-(2,6,6-trimethyl-4-oxo-5,7-dihydroindol-1-yl)benzenesulfonamide