Ethyl 5-hydroxy-7-oxo-2-phenyl-8-propyl-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate
3-Bromo-2,4-dichloro-5-nitropyridine
2-Bromo-1-(pyridin-2-yl)ethanone
5-Chloro-1-methyl-6-oxo-1,6-dihydropyridine-3-carboxylic acid
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