Acid-catalyzed transformations of N-(5-methyl-2-furyl)ethyl 3-aminothieno[2,3-b]pyridine-2-carboxamides accompanied with furan ring opening were investigated. Based on furan ring recyclization several derivatives of the new fused heterocyclic system – pyrrolo[1,2-a][1,4]diazocine – were obtained. The structures of the synthesized compounds were assigned by their NMR, IR, and MS data.
研究了 N-(5-methyl-2-furyl)ethyl 3-aminothieno[2,3-b]pyridine-2-carboxamides 伴随
呋喃开环的酸催化转化。基于
呋喃环再环化,获得了新稠合杂环系统的几种衍
生物——
吡咯并[1,2-a][1,4]重氮辛。合成化合物的结构由它们的 NMR、IR 和 MS 数据指定。