METHOD FOR PREPARING 3,6-DIAMINOPYRAZINE-2,5-DICARBOXYLIC ACID AND SYNTHETIC INTERMEDIATE THEREOF
摘要:
A method for preparing 3,6-diaminopyrazine-2,5-dicarboxylic acid and a synthetic intermediate thereof. The method comprises the step of preparing pyrimido[4,5-g]pteridine-2,4,7,9(1H,3H,6H,8H)-tetraone or a disalt (pteridine) thereof from 5-aminouracil or a single salt thereof.
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