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(2007/10/02)6-(Acetoxymethyl)-2,4-dioxopyrido<3,2-d>pyrimidine
2,4-Dioxo-6-methylpyrido<3,2-d>pyrimidine 5-Oxide
2,4-diamino-6-(bromomethyl)pyrido<3,2-d>pyrimidine
2,4-Diamino-6-(hydroxymethyl)pyrido<3,2-d>pyrimidine
2,4-Dioxo-6-methylpyrido<3,2-d>pyrimidine