Research on nitrogen containing heterocyclic compounds. XVI. Synthesis of 1, 3, 4, 14b-tetrahydro-2, 10-dimethyl-2<i>H</i>,10<i>H</i>-pyrazino[2, 1-<i>d</i>]pyrrolo[1, 2-<i>b</i>][1, 2, 5]benzotriazepine (1:1) maleate (10-methyl-10-azaaptazepine)
作者:Giorgio Stefancich、Romano Silvestri
DOI:10.1002/jhet.5570260343
日期:1989.5
10H-pyrazino[2, 1-d]-pyrrolo[1, 2-b][1, 2, 5]benzotriazepine 4, structurally related to aptazepine, is reported in four steps. The key steps of the synthesis were the formation of the tricyclic compound ethyl 10, 11-dihydro-5-methyl-5H-pyrrolo[1, 2-6-b][1, 2, 5]benzotriazepine-11-carboxylate 6 via a Pictet-Spengler type condensation and the formation of the diketopiperazine 8 by cyclization of the chloroester
潜在的抗抑郁药1,3,4,14b-tetrahydro-2,10-ditnethyl-2 H,10 H-吡嗪并[2,1-d]-吡咯并[1,2- b ] [1,2, 5] benzotriazepine 4,结构上与aptazepine,报道在四个步骤。合成的关键步骤是形成三环化合物乙基10,11-二氢-5-甲基-5 H-吡咯并[1,2-6- b ] [ 1,2,5 ]苯并三氮杂-11-羧酸酯6 通过Pictet-Spengler型缩合反应和通过将氯酯7与甲胺环化形成二酮哌嗪8。