Novel Pyridine‐Based Hydroxamates and 2′‐Aminoanilides as Histone Deacetylase Inhibitors: Biochemical Profile and Anticancer Activity
作者:Clemens Zwergel、Elisabetta Di Bello、Rossella Fioravanti、Mariarosaria Conte、Angela Nebbioso、Roberta Mazzone、Gerald Brosch、Ciro Mercurio、Mario Varasi、Lucia Altucci、Sergio Valente、Antonello Mai
DOI:10.1002/cmdc.202000854
日期:2021.3.18
against HDAC3, with the nicotinic anilide 12 d being the most effective (IC50HDAC3=0.113 μM). When tested in U937 leukemia cells, the hydroxamates 9 e, 11 c, and 11 d blocked over 80 % of cells in G2/M phase, whereas the anilides did not alter cell‐cycle progress. In the same cell line, the hydroxamate 11 c and the anilide 10 b induced about 30 % apoptosis, and the anilide 12 c displayed about 40 % cytodifferentiation
从起始Ñ -羟基-3-(4-(2-苯基丁酰基)氨基)苯基)丙烯酰胺(图5b之前由我们描述为HDAC抑制剂),我们制备了4氮杂类似物,6 - 8,9b中,如含有吡啶核的区域异构体。针对 mHDAC1 的初步筛选突出显示了N-羟基-5-(2-(2-苯基丁酰基)氨基)吡啶基)丙烯酰胺 ( 9b ) 作为最有效的抑制剂。因此,我们进一步发展既pyridylacrylic-和烟碱基异羟肟酸盐(9,9c的- ˚F,和11 - ˚F)和2'-aminoanilides(10 -f和12 a – f ),与9 b相关,针对 HDAC 进行测试。其中,烟碱异羟肟酸酯11 d显示出亚纳摩尔的效力(IC 50:0.5 nM)和选择性高达 HDAC4 的 34 000 倍和所有其他测试的 HDAC 同种型的 100 至 1300 倍。2'-氨基苯胺是 I 类选择性 HDAC 抑制剂,通常对 HDAC3 更有效,其中烟碱苯胺12