Elsevier, Tetrahedron Letters, 17(38), p. 2985-2988
DOI: 10.1016/s0040-4039(97)00539-x
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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.