6-(naphthalen-2-yl)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carbonitrile

8-acetyl-6-(5-chloro-2-methoxyphenyl)-2,3-dihydroindolizin-5(1H)-one

6-(6-methoxypyridin-3-yl)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carbonitrile

5-oxo-6-(p-tolyl)-1,2,3,5-tetrahydroindolizine-8-carbonitrile

6-(benzofuran-2-yl)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carbonitrile