Synthesis and biological activity of 8-oxadihydropteridines
作者:Shwu-Ching Lin、Gary P. Holmes、Danny L. Dunn、Charles G. Skinner
DOI:10.1021/jm00192a024
日期:1979.6
A series of 6-substituted and 6,7-disubstituted pyrimido[4,5-b][1,4]oxazines (8-oxadihydropteridines) was synthesized through the condensation of an alpha-halo ketone and 2,5-diamino-4,6-pyrimidinediol. The resulting 8-oxadihydropteridines were assayed as potential antifolates in a dihydrofolate reductase enzyme system. The 2-amino-4-hydroxyoxa-dihydropteridines were found to possess greater biological