5-[(methoxycarbonyl)oxy]nicotinic acid

6',6'-dimethyl-5',6'-dihydrospiro[cyclohexane-1,4'-pyrrolo[3,2,1-ij]quinoline]-1',2'-dione

1-allyl-5-bromo-1H-indole-2,3-dione

2-amino-N-1,3-benzodioxol-5-ylbenzamide

4,4,6-trimethyl-5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-1,2-dione

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

6-(4-methoxyphenyl)-3-methyl-1,5,6,7-tetrahydro-4H-indazol-4-one

methyl 2,4-dioxo-6-(2-thienyl)cyclohexanecarboxylate

2-[(dimethylamino)methylene]cyclopentane-1,3-dione

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

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