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

6-(4-(methylsulfonyl)phenyl)-5-oxo-1,2,3,5-tetrahydroindolizine-8-carbonitrile

N-(3-(8-cyano-5-oxo-1,2,3,5-tetrahydroindolizin-6-yl)phenyl)acetamide

ethyl 3-(8-cyano-5-oxo-1,2,3,5-tetrahydroindolizin-6-yl)benzoate

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