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
通过α-卤代酮与2,5-二氨基-4的缩合反应,合成了一系列6-取代和6,7-二取代的嘧啶并[4,5-b] [1,4]恶嗪(8-氧二氢蝶啶)。 ,6-嘧啶二醇。在二氢叶酸还原酶系统中,将所得的8-氧杂二氢吡啶定为潜在的抗叶酸剂。发现2-氨基-4-羟基氧杂二氢蝶啶比相应的2,4-二氨基化合物具有更大的生物活性。在测试的化合物中,最有效的化合物是蝶酸2-氨基-4-羟基-6-苯乙基-8-氧二氢蝶啶。