2-Methyl-3-[(E)-3-(2-nitro-phenyl)-acryloyl]-chromen-4-one

(2Z,4E)-3-Hydroxy-1-(2-hydroxy-phenyl)-5-(2-nitro-phenyl)-penta-2,4-dien-1-one

3-[(E)-1-Hydroxy-3-(2-nitro-phenyl)-prop-2-en-(Z)-ylidene]-2-methyl-chroman-4-one

2-Ethyl-3-[(E)-1-hydroxy-3-(2-nitro-phenyl)-prop-2-en-(Z)-ylidene]-chroman-4-one

(E)-N-(3,3-Dimethyl-6-nitro-2-oxo-1-pentyl-2,3-dihydro-1H-indol-5-yl)-3-(2-nitrophenyl)-acrylamide