(4,4,6,8-tetramethyl-2-oxo-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinolin-1(2H)-ylidene)malononitrile

(1E)-4,4,6,8,9-pentamethyl-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione 1-thiosemicarbazone

2-amino-N-cycloheptylbenzamide

7-(4-methylphenyl)-2,5-dioxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylic acid

methyl 2,4-dioxo-6-phenylcyclohexanecarboxylate

3-amino-5-(2-furyl)cyclohex-2-en-1-one

3-(2-hydroxyethyl)-6,7-dimethoxyquinazoline-2,4(1H,3H)-dione

3-ethylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione

3-(2,4-difluorophenyl)thieno[3,2-d]pyrimidine-2,4(1H,3H)-dione

3-isopropylthieno[3,2-d]pyrimidine-2,4(1H,3H)-dione

N-[imino(pyrrolidin-1-yl)methyl]benzamide