Also Called: 2-Quinazolineacetonitrile, α-[2,3-dihydro-3-(tetrahydro- 2,4,6-trioxo-5(2H)-pyrimidinylidene)-1H -isoindol-1-ylidene]-1,4-dihydro-4-oxo-;2-Quinazolineacetonitrile, .alpha.-[2,3-dihydro-3-(tetrahydro-2,4,6-trioxo-5(2H)-pyrimidinylidene)-1H-isoindol-1-ylidene]-3,4-dihydro-4-oxo-;2-Quinazolineacetonitrile, α-[2,3-dihydro-3-(tetrahydro-2,4,6-trioxo-5(2H)-pyrimidinylidene)-1H-isoindol-1-ylidene]-1,4-dihydro-4-oxo-