Research on nitrogen containing heterocyclic compounds.<b>XVIII</b>. Synthesis of 9<i>H</i>-pyrrolo[2,1-<i>c</i>]-<i>s</i>-triazolo[4,3-<i>a</i>][1,4]benzodiazepine, a novel tetracyclic ring of pharmaceutical interest
作者:Giorgio Stefancich、Marino Artico、Romano Silvestri
DOI:10.1002/jhet.5570290457
日期:1992.7
10-dihydro-9H-pyrrolo[2,1-c][1,4]benzodiazepin-11-one 9 afforded 11-(di-4-morpholinylphosphinyloxy)-5H-pyrrolo[2,1-c][1,4]benzodiazepine 10. Displacement of di-4-morpholinylphosphinyloxy group of 10 by formylhydrazine with concomitant intramolecular cyclization led directly to 9H-pyrrolo[2,1-c]-s-triazolo[4,3-a][1,4]benzodiazepine 7, a novel nitrogen heterocyclic ring of pharmaceutical interest. A new procedure
二-4-吗啉基次膦酰氯在5,10-二氢-9 H-吡咯并[2,1- c ] [1,4]苯并二氮杂-1-11上的反应得到11-(二-4-吗啉基次膦酰氧基)-5 H -吡咯并[2,1- c ] [1,4]苯并二氮杂10 10。的二-4- morpholinylphosphinyloxy组的位移10通过与直接导致9伴随分子内环化甲酰ħ -吡咯并[2,1- Ç - ]小号-三唑并[4,3-一个] [1,4]苯并二氮杂7,一个药学上感兴趣的新型氮杂环。还描述了合成9的新方法。