Synthesis of a novel series of 3-substituted [1]benzothieno[3,2-d]pyrimidine derivatives
作者:Farag El-Telbany、Robert O. Hutchins
DOI:10.1002/jhet.5570220236
日期:1985.3
A series of 3-substituted [1]benzothieno[3,2-d]pyrimidine derivatives has been synthesized as possible antileukemic agents by condensation of methyl 3-(ethoxymethylene)amino-2-benzothiophene carboxylate (II) with a variety of amines to afford the corresponding 3-aryl and 3-alkyl [I]benzothieno[3,2-d]pyrimidin-4(3H)-ones, Ill and IV, respectively. In addition, Mannich reactions of [I]benzothieno[3,
通过将3-(乙氧基亚甲基)氨基-2-苯并噻吩羧酸甲酯(II)与多种胺缩合成三元胺,合成了一系列3-取代的[1]苯并噻吩并[3,2- d ]嘧啶衍生物,作为可能的抗白血病药物。分别得到相应的3-芳基和3-烷基[I]苯并噻吩并[3,2 - d ]嘧啶-4(3H)-,III和IV。另外,[I]苯并噻吩并[3,2 - d ]嘧啶-4(3H)-一(VIII)与甲醛和仲胺的曼尼希反应得到了预期的衍生物IX。3-氨基[I]苯并噻吩并[3,2 - d ]-嘧啶-4(3 H)-一(VI)在三氟化硼的存在下与取代的芳族醛反应,得到相应的亚胺VII。