1,2,3-Triazolodiazepines.<b>I</b>. Preparation and benzodiazepine receptor binding of 1-benzyl- and 1-phenethyl-1,2,3-triazolo-[4,5-<i>b</i>][1,4]diazepines
作者:Giuliana Biagi、Irene Giorgi、Oreste Livi、Valerio Scartoni、Silvia Velo、Antonio Lucacchini、Generoso Senatore、Pier Luigi Barili
DOI:10.1002/jhet.5570320127
日期:1995.1
Several new 1,2,3-triazolo[4,5-b][1,4]diazepines were prepared starting from 1-benzyl-1 and 1-phenethyl-4,5-diamino-1,2,3-triazole 2 (Scheme 1), by condensation reactions with β-diketones (Scheme 2), β-ketoesters (Scheme 3), and diethyl malonates (Scheme 4). In the first case we obtained compounds 3 and 4 with basic properties, while the ester function condensations gave cyclic amide derivatives 7
从1-苄基-1和1-苯乙基-4,5-二氨基-1,2,3-三唑2制备了几种新的1,2,3-三唑并[4,5- b ] [1,4]二氮杂(方案1),通过与β-二酮(方案2),β-酮酸酯(方案3)和丙二酸二乙酯的缩合反应(方案4)。在第一种情况下,我们获得具有碱性的化合物3和4,而酯官能团缩合得到具有酸性的环状酰胺衍生物7、8、10、12和13。一些Ñ甲基衍生物11,14和15是从环状酰胺化合物获得。测试了大多数化合物的取代能力[ 3H]氟硝西]来自牛脑膜,但没有化合物显示出苯并二氮杂receptor受体的结合亲和力。