Syntheses of 3b, 4, 6, 7-Tetrahydro-5h, 9h-pyrazino [2, 1-c] phyrolo [1, 2-a][1, 4] benzodiazepine, a valuable precursor of potential central nervous system agents
Two alternative routes to 3b, 4, 6, 7-tetrahydro-4H, 9H-pyrazino [2, 1-c] pyrrolo [1, 2-a][1, 4] benzodiazepine, a useful intermediate for the synthesis of potential antidepressant agents, are described. Though following conceptually different synthetic approaches, both procedures lead to the title compound in a simple and profitable way.
![5,6-dihydro-5-benzyloxycarbonylaminoacetyl-4-ethoxycarbonyl-4H-pyrrolo[1,2-a][1,4]benzodiazepine结构式](https://image.chemsrc.com/caspic/043/122485-07-8.png)
