Synthesis and Biological Activity of a Series of Aspartate Transcarbamoylase Inhibitors: N-Substituted Diethyl Aspartates and N-Substituted-3-oxo-1, 4-piperazine-2-acetic Acid Esters
作者:Panna Lal Dutta、William O. Foye
DOI:10.1002/jps.2600790519
日期:1990.5
Series of N-substituted diethyl aspartates and N-substituted-3-oxo-1,4-piperazine-2-acetic acid esters were synthesized as potential inhibitors of aspartate transcarbamoylase. The aspartates were obtained by addition of substituted alkyl amines to diethyl maleate, or conversion of the hydroxy ethyl amino adduct to other functions. The 3-oxo-1,4-piperazine-2-acetic acid esters were prepared by addition
合成了一系列的N-取代的天门冬氨酸二乙酯和N-取代的-3-氧代-1,4-哌嗪-2-乙酸酯作为天冬氨酸转氨甲酰酶的潜在抑制剂。通过将取代的烷基胺加到马来酸二乙酯中或将羟乙基氨基加合物转化成其他官能团来获得天冬氨酸。通过将乙二胺加到马来酸二乙酯中,然后环化来制备3-氧代-1,4-哌嗪-2-乙酸酯。加入1,2-二氨基-2-甲基丙烷得到相应的5,5-二甲基-3-氧代-1,4-哌嗪-2-乙酸酯。使用溴酰氯获得每个系列中的N-酰基衍生物。每个系列中的大多数化合物显示出对五种代表性微生物的抗菌活性,以及对天冬氨酸转氨甲酰酶的显着活性。发现其中的四种化合物对几种肿瘤细胞系具有显着的特异性。在开链天门冬氨酸或环状哌嗪中,发现两个碳原子之间的距离为N且具有反应性功能,以提供最佳的抗微生物,抗酶或肿瘤细胞特异性活性。天冬氨酸和哌嗪之间抗酶活性几乎没有差异,但是引入平面苯基取代基降低了抑制活性。