Synthesis of Novel Thieno- andPyrrolo[2,3-<i>d</i>]pyrimidines<i>peri</i>-Fused with Pyrimidine,1,4-Diazepine and 1,4-Thiazepine Rings
作者:Sigitas Tumkevicius、Zivile Sarakauskaite、Viktoras Masevicius
DOI:10.1055/s-2003-40209
日期:——
the first representative of 6-thia-2,3,5,9-tetraazabenz[cd]azulene 9. Reaction of 5-amino-4-(alkoxycarbonylmethylamino)thieno- and pyrrolopyrimidines 3 and 8 with ethyl orthoformate or formalin in the presence of acids furnished the new 1-thia-3,5,6,8-tetraaza-, 1,3,5,6,8-pentaazaacenaphthylenes 10a,b and their 3,4-dihydro derivatives 1la,b. Acylation of 3 and 8 with chloroacetyl chloride gave the 5-chloroacetylamino
一种通用的、迄今为止未报道的烷基 4-氯-或 4-(烷氧基羰基甲基)氨基(硫代)-5-氨基-2-甲基硫代噻吩并[2,3-d]-和吡咯并[2,3-d] 的简单有效合成] pyrimidine-6-carboxylates 3,5,6,8, from 6-chloro-4-(alkoxycarbonylmethylamino)-2-methylthiopyrimidine-5-carbonitriles 2a,b 描述。5-氨基-4-氯吡咯并[2,3-d]嘧啶6与肌氨酸甲酯反应得到新型2,3,5,6,9-五氮杂苯并[cd]azulene 7。加热5-氨基-4-(乙氧基羰基甲硫基)吡咯并[2,3-d[嘧啶 5 在 DMSO 中在碳酸钾存在下得到第一个代表 6-thia-2,3,5,9-tetraazabenz[cd]azulene 9。5-氨基- 4-(烷氧基羰基甲基氨基)噻吩并吡咯嘧啶 3 和