Galanthamine analogs: 6H-benzofuro[3a,3,2,-e,f][1]benzazepine and 6H-benzofuro[3a,3,2-e,f][3]benzazepine
作者:Anita H. Lewin、Jerzy Szewczyk、Joseph W. Wilson、F. Ivy Carroll
DOI:10.1016/j.tet.2005.05.055
日期:2005.7
The known cholinesterase inhibitory capability of the Amarylidaceae alkaloid galanthamine prompted preparation of analogs in which the position of the nitrogen within the azepine ring is altered. The analogs 6H-benzofuro[3a,3,2-e,f][1]benzazepine and 6H-benzofuro[3a,3,2-e,f][3]benzazepine were prepared in 19 and 2.5%, respectively, following Kametani and Shimizu approaches, respectively. The aniline
mary科生物碱加兰他敏的已知胆碱酯酶抑制能力促使制备类似物,其中氮杂环丁烷环内氮的位置被改变。类似物6 ħ -benzofuro [3α,3,2- ë,˚F ] [1]苯并氮杂和6 ħ -benzofuro [3α,3,2- ë,˚F ] [3]苯并吖庚因是在19和2.5%分别制备,分别采用Kametani和Shimizu的方法。苯胺衍生物6 H-苯并呋喃[3a,3,2- e,f] [1]苯并ze庚因未经历加兰他敏典型的大多数反应。因此,在用于加兰他敏的条件下,它既不氧化成类似的narwedine,也没有异构化成类似的表没食子黄胺,也没有还原成来考拉明类似物。