(2R,6S)-2,6-diphenylspiro[cyclohexane-1,2′-indene]-1′,3′,4-trione

5H-indeno[1,2-b]indol-10-one

2-(1-methylpyridin-2-ylidene)indene-1,3-dione

2-(二甲硫基亚基)茚满-1,3-二酮

methyl 4-[4-(2-hydroxyethoxy)-3-methoxyphenyl]-6-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate