Novel peptidoaminobenzophenones, terminal N-substituted peptidoaminobenzophenones, and N-(acylglycyl)aminobenzophenones as open-ring derivatives of benzodiazepines
作者:Kentaro Hirai、Teruyuki Ishiba、Hirohiko Sugimoto、Toshio Fujishita、Yuji Tsukinoki、Katsumi Hirose
DOI:10.1021/jm00133a006
日期:1981.1
Peptidoaminobenzophenones (1), terminal N-substituted peptidoaminobenzophenones (14), and acylglycylaminobenzophenones (16) were prepared as a novel series of ring-opened derivatives of 1,4-benzodiazepine. Z-Gly- and Z-Ala-N-methylaminobenzophenones (4) were treated with HBr-HOAc to give Gly- and Ala-N-methylaminobenzophenone hydrobromides (8). Reaction of 8 with chloroacetyl chloride in dimethylformamide
将肽氨基二苯甲酮(1),末端N-取代的肽氨基二苯甲酮(14)和酰基糖基氨基二苯甲酮(16)制备为1,4-苯并二氮杂a的新型开环衍生物。用HBr-HOAc处理Z-Gly-和Z-Ala-N-甲基氨基二苯甲酮(4),得到Gly-和Ala-N-甲基氨基二苯甲酮氢溴酸盐(8)。8与氯乙酰氯在二甲基甲酰胺(DMF)或六甲基磷酰胺(HMPA)中的反应生成氯乙酰胺(13),使其与各种胺反应,得到许多末端N-取代的衍生物(14)。8与HMPA或DMF中的各种酰基卤反应,得到许多酰基糖基-N-甲基氨基二苯甲酮(16)。肽氨基二苯甲酮(1)也可以通过几种方便的方法制备。口服时,这些化合物中的许多在动物中均表现出较高的CNS活性。在抗焦虑活性中,某些化合物的功效等于或高于地西epa。