A Direct Synthesis of 3-(Pyrrolidin-3-yl)indoles for Use As Conformationally Restricted Analogs of Tryptamines
作者:John E. Macor、David H. Blank、Kevin Ryan、Ronald J. Post
DOI:10.1055/s-1997-1214
日期:1997.4
An efficient, two step synthesis of 3-(pyrrolidin-3-yl)indoles 4 is described. Indoles react with maleimides in refluxing acetic acid affording 3-(indol-3-yl)succinimides 6. Reaction times and yields depend on the substituents on the indole 5. Direct reduction of the succinimides 6 with LAH affords the desired conformationally restricted tryptamine derivatives 4.
本文描述了一种 3-(
吡咯烷-3-基)
吲哚 4 的高效两步合成法。
吲哚与马来
酰亚胺在回流
乙酸中反应,生成 3-(
吲哚-3-基)琥珀
酰亚胺 6。反应时间和产量取决于
吲哚 5 上的取代基。用
LAH 直接还原琥珀
酰亚胺 6,可得到所需的构象受限的
色胺衍
生物 4。