indeno[1,2-b]quinolin-11-one

2-[(2,5-dimethoxyphenyl)methylidene]indene-1,3-dione

2-[2,6-dimethyl-1-(4-piperidin-1-ylbut-2-ynyl)pyridin-4-ylidene]indene-1,3-dione

2-(2,6-dimethyl-1-propa-1,2-dienylpyridin-4-ylidene)indene-1,3-dione

2-[[4-(N-phenylanilino)phenyl]methylidene]indene-1,3-dione