Synthesis of a new pyrrolo[1,3]diazepine: 4<i>H</i>-pyrrolo[1,2-<i>a</i>]thieno[2,3-<i>e</i>][1,3]diazepine
作者:Abdelali Daïch、Philippe Ohier、Bernard Decroix
DOI:10.1002/jhet.5570320611
日期:1995.11
The 4H-pyrrolo[1,2-a]thieno[2,3-e][1,3]diazepine (20) was synthesized by the one-pot intramolecular cyclization of the appropriate nitroaldehyde 13. This key intermediate 13 was obtained by two pathways from methyl 3-bromomethylthiophene-2-carboxylate (6).
4 H-吡咯并[1,2- a ]噻吩并[2,3-e] [1,3]二氮杂((20)是通过一锅内适当的硝基醛13分子内环化反应合成的。该关键中间体13通过3-溴甲基噻吩-2-羧酸甲酯(6)的两种途径获得。