5-(6-Hydroxy-5-methylpyridin-3-yl)thiophene-2-carboxylic acid

3-bromo-5-iodo-2,4-dimethylpyridine

5-bromo-6-methyl-1,7-naphthyridine

6-hydroxy-3H-imidazo[4,5-b]pyridine-5-carboxylic acid

2,7-dimethoxy-1,8-naphthyridine-4-carboxylic acid

2-(4-oxopyrido[2,3-d]pyrimidin-3(4H)-yl)acetic acid hydrochloride

1-methyl-3-(2-methylphenyl)-1{H}-pyrazole-5-carboxylic acid

1-(4-fluorophenyl)-4-hydroxy-6-oxo-1,6-dihydropyridazine-3-carboxylic acid

3-(4-methoxyphenyl)-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid

3-chloro-6-(2-furyl)pyridazine

6-pyridin-3-yl-2-thioxo-2,3-dihydropyrimidin-4(1{H})-one