3-Nitro-1H-pyrrolo[3,2-b]pyridine-5-carboxylic acid
Ethyl 5-hydroxy-2-(methylthio)-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate
(3-Acetoxy-4-methylpyridin-2-yl)methyl acetate
7-Bromopyrido[3,2-d]pyrimidin-4-amine
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