2,5-dimethyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carbonitrile

2-(2-{[amino(imino)methyl]amino}-4-oxo-4,5-dihydro-1,3-thiazol-5-yl)-N-cyclopropylacetamide

2-(5-oxo-5,6-dihydro-4H-imidazo[1,2-b][1,2,4]triazol-6-yl)-N-propylacetamide

N-methyl-2-(3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-yl)acetamide

N-(2-methoxyethyl)-2-(3-oxodecahydroquinoxalin-2-yl)acetamide

2-[(dimethylamino)methylene]-5-(2,3,4-trimethoxyphenyl)cyclohexane-1,3-dione

methyl 1-(2-furylmethyl)-4-oxopiperidine-3-carboxylate

2-amino-7-(5-methyl-2-furyl)-7,8-dihydroquinazolin-5(6H)-one

6-(5-methyl-2-furyl)-1,5,6,7-tetrahydro-4H-indazol-4-one

2-[(dimethylamino)methylene]-5-(5-methyl-2-furyl)cyclohexane-1,3-dione

5'-amino-2,3'-bithiophene-4'-carboxylic acid