7-Bromo-[1,2,5]thiadiazolo[3,4-c]pyridin-4(5h)-one
2-Nitro-1-(pyridin-4-yl)ethanol
4-Oxo-3,4-dihydropyrido[3,2-d]pyrimidine-7-carbonitrile
7-Methoxypyrido[3,2-d]pyrimidin-4(3h)-one
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