作者:Kayed A. Abu Safieh、Mustafa M. El-Abadelah、Musa H. Abu Zarga、Salim S. Sabri、Wolfgang Voelter、Cäcilia M. MÖssmer
DOI:10.1002/jhet.5570380312
日期:2001.5
The synthesis of some new pyrazolo[3′,4′:6,7]azepino[5,4,3-cd] indoles (10a-c) was achieved via regios-elective cyclization of the respective 3-(4-acylaminopyrazol-5-yl)indoles (9a-c) under Bischler-Napieralski reaction conditions. The latter compounds were obtained by acylation of the corresponding 3-(4-aminopyra-zol-5-yl)indoles (8a,b) which, in turn, were prepared by reduction of the 3-(4-nitro
一些新的吡唑并[3',4':6,7] azepino [5,4,3- cd ]吲哚(10a-c)的合成是通过相应的3-(4-酰基氨基吡唑- Bischler-Napieralski反应条件下的5-yl)吲哚(9a-c)。后一种化合物是通过将相应的3-(4-氨基吡唑-zol-5-基)吲哚(8a,b)酰化而得到的,而吲哚(8a,b)又是通过还原3-(4-硝基吡唑-5-基)而制得的。吲哚前体(7a,b)。后者的合成子可从吲哚基氯化锌(5a,b)与5-氯-1,3-二甲基-4-硝基吡唑的反应中获得。10a-c的MS和NMR光谱数据通过X射线晶体测量确定的10a所确定的分配的zepino-吲哚结构与α-吡喃并-吲哚结构相符,这表明氮杂环丁烷环几乎与吲哚和吡唑环完全平整。