2-(2,6-dimethylpyran-4-ylidene)indene-1,3-dione

2-溴-1,3-茚二酮

2,2-dibromoindene-1,3-dione

spiro[cyclopropane-1,2'-indene]-1',3'-dione

2-[(4-methoxyphenyl)methylidene]indene-1,3-dione