4-butyl-5-(6-cyclopropyl-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridin-4-yl)-4H-1,2,4-triazole-3-thiol

1-cyclopentyl-6-(2-furyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid

1-ethyl-3-methyl-6-(4-methylphenyl)-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid

6-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid

methyl 3-hydroxy-5-(1H-pyrazol-1-yl)thiophene-2-carboxylate

methyl 3-chloro-4-cyclopropyl-2,4-dioxobutanoate

1-(1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-yl)piperidine-4-carboxylic acid

2-(2-bromo-4-formyl-6-methoxyphenoxy)-N-cyclohexylacetamide

2-(2-chloro-4-hydroxy-5-methoxybenzylidene)malonic acid

(2E)-3-(2-{2-[(4-ethoxyphenyl)amino]-2-oxoethoxy}phenyl)acrylic acid

(2E)-3-[5-bromo-2-(2-ethoxy-1-methyl-2-oxoethoxy)phenyl]acrylic acid