2-methyl-8,9,10,11-tetrahydro-5H-indolo[3,2-c]quinoline-6,7-dione

3-hydroxy-2-phenylcyclohex-2-en-1-one

N-(2,5-dioxo-7,8-dihydro-6H-chromen-3-yl)benzamide

1-benzoyl-3-benzoylamino-1,5-dihydro-2H-pyrrol-2-one

2-phenyl-3,5,6,7-tetrahydro-2H-1-benzofuran-4-one