Ethyl 5-hydroxy-7-oxo-2,8-diphenyl-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate
Ethyl 2-amino-2-(pyridin-3-yl)acetate dihydrochloride
1-Methyl-1H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid
5-Bromo-1H-pyrrolo[2,3-b]pyridine-6-carboxylic acid
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