2-(Pyridin-3-yl)pyrimidin-5-amine
2-(o-Tolyl)-2,6-dihydro-7H-pyrazolo[3,4-d]pyridazin-7-one
2-(5-Methylpyridin-2-yl)pyrimidine-5-carboxylic acid
2-(5-Hydroxypyridin-2-yl)pyrimidine-5-carboxylic acid
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