Nitrogen bridgehead compounds. Part<b>88</b>. Synthesis of 3<i>H</i>, 7<i>H</i>-[1,4]diazepino[3,4-<i>b</i>]quinazoline-3,7-diones
作者:Mónika Szabó、József Kökösi、László Örfi、Attila Kovács、István Hermecz
DOI:10.1002/jhet.5570340104
日期:1997.1
3-[2-(1-bromoethyl)-4-oxo-3,4-dihydroquinazolin-3-yl)propionic acid 14 by the action of triethylamine provided the first representative of the tricyclic 7H-[1,4]oxazepino[3,4-b]quinazoline-3,7-dione system, compound 15. The new tricyclic derivatives 9, 11 and 15 are characterized by uv, ir and 1H nmr spectroscopy.
从2-(1-溴-乙基)喹唑啉-4(3 H)-开始合成了3 H,7 H- [1,4] Diazepino [3,4- b ] quinazolone -3,7- diones 9,11 。者3和17经由2- [1-(4-甲氧基苯基氨基)乙基]喹唑啉-4(3 H ^) -酮4和18环化的3- [2-(1-溴乙基)-4-氧代-3,4- -二氢喹唑啉-3-基)丙酸14在三乙胺的作用下提供了三环7 H- [1,4]恶唑并[3,4- b ]喹唑啉-3,7-二酮体系的第一个代表化合物15。新的三环衍生物9、11和15用uv,ir和1 H nmr光谱表征。