A novel and expedient approach to new heterocycles containing benzothiophene, benzothieno[2,3-d]pyrimidine and coumarin moieties
作者:Yaroslav V. Bilokin、Maksym V. Vasylyev、Olena V. Branytska、Sergiy M. Kovalenko、Valentyn P. Chernykh
DOI:10.1016/s0040-4020(99)00859-5
日期:1999.11
inhibitors a novel and versatile method for synthesis of heterocyclic compounds 4a–d and 5a–c comprising 2-imino-2H-l-benzopyran, tetrahydrobenzo[b]thiophene, and carboxamide/1H-benzimidazole fragments has been developed. This method was based on the reactions of 2-imino-2H-1-benzopyrans 1a,b and 2 with 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophenes 3a–c in glacial acetic acid. Furthermore new heterocycles
为了获得有效的蛋白酪氨酸激酶抑制剂,一种新颖而通用的合成杂环化合物4a-d和5a-c的方法,该化合物包括2-亚氨基-2 H --1-苯并吡喃,四氢苯并[ b ]噻吩和羧酰胺/ 1 H已经开发了-苯并咪唑片段。该方法基于2-亚氨基-2 H -1-苯并吡喃1a,b和2与2-氨基-4,5,6,7-四氢苯并[ b ]噻吩3a–c在冰醋酸中的反应。此外,具有四氢苯并[4,5]噻吩并[2,3- d ]的新杂环8a,b]嘧啶和香豆素结构部分已经合成通过相应的2-重排(四氢苯并[ b ]噻吩-2-基)亚氨基-2- ħ -1-苯并吡喃-3-羧酰胺4A,4B。