2-(Indolin-2-on-5-yl)-3,4-diazabicyclo(4.1.0)hept-2-en-5-one 3,4-Diazabicyclo(4.1.0)hept-4-en-2-one, 5-(2,3-dihydro-2-oxo-1H-indol-5-yl)- 5-(2,3-Dihydro-2-oxo-1H-indol-5-yl)-3,4-diazabicyclo(4.1.0)hept-4-en-2-one 85123-65-5