A New Access to Isoindolo[2,1-b][2,4]benzodiazepines through an N-Acyliminium Ion - Amide Cyclization
作者:Pascal Pigeon、Bernard Decroix
DOI:10.1016/s0040-4039(97)00539-x
日期:1997.4
Isoindolo[2,1-b][2,4]benzodiazepines 11a-c were synthesized from hydroxylactam-acid 5 when it was treated successively with thionyl chloride, ammonia (or an alkylamine) and p-toluenesulfonic acid. (C) 1997 Elsevier Science Ltd.