Synthesis and biological evaluation of N -(carbobenzyloxy)- l -phenylalanine and N -(carbobenzyloxy)- l -aspartic acid- β -benzyl ester derivatives as potent topoisomerase IIα inhibitors
作者:Xiaoyan Han、Yifan Zhong、Guan Zhou、Hui Qi、Shengbin Li、Qiang Ding、Zhenming Liu、Yali Song、Xiaoqiang Qiao
DOI:10.1016/j.bmc.2017.03.065
日期:2017.6
A new series of thirteen N-(carbobenzyloxy)-l-phenylalanine and N-(carbobenzyloxy)-l-aspartic acid-β-benzyl ester compounds were synthesized and evaluated for antiproliferative activity against four different human cancer cell lines: cervical cancer (HeLa), lung cancer (A549), gastric cancer (MGC-803) and breast cancer (MCF-7) as well as topoisomerase I and IIα inhibitory activity. Compounds (5a, 5b
合成了一系列新的十三种N-(羰基苄氧基)-1-苯丙氨酸和N-(羰基苄氧基)-1-天冬氨酸-β-苄基酯化合物,并评估了其对四种不同的人类癌细胞系的抗增殖活性:宫颈癌(HeLa ),肺癌(A549),胃癌(MGC-803)和乳腺癌(MCF-7)以及拓扑异构酶I和IIα的抑制活性。化合物(5a,5b,5e,8a,8b)显示出显着的抗增殖活性,并且对四种癌细胞系的IC50值较低。同样,化合物5a,5b,5e,5f,8a,8d,8e和8f在100μM处显示拓扑异构酶IIα抑制活性,而5b,5e,8f与100μM和20μM的阳性对照分别显示潜在的拓扑异构酶IIα抑制活性。相反地,化合物5e,5f,与100μM的阳性对照相比,5g和8a显示出较弱的拓扑异构酶I抑制活性。化合物5b在低浓度时表现出最有效的拓扑异构酶IIα抑制活性,并且对四种人类癌细胞系表现出更好的抗增殖活性。通过分子对接进一步研究化合