Amide-based derivatives of β-alanine hydroxamic acid as histone deacetylase inhibitors: Attenuation of potency through resonance effects
作者:Vivian Liao、Tao Liu、Rachel Codd
DOI:10.1016/j.bmcl.2012.08.006
日期:2012.10
amide-linked derivatives of β-alanine hydroxamic acid were prepared (2–7) and the activity as inhibitors of Zn(II)-containing histone deacetylases (HDACs) determined in vitro against HDAC1 and the anti-proliferative activity determined in BE(2)-C neuroblastoma cells. The IC50 values of the best-performing compounds (3–7) against HDAC1 ranged between 38 and 84 μM. The least potent compound (2) inhibited
β丙氨酸异羟肟酸的酰胺连接的衍生物的文库中制备(2 - 7)和活性的体外测定对HDAC1和抗增殖活性的Zn的抑制剂(II)的组蛋白脱乙酰酶(HDACs)的确定BE(2)-C神经母细胞瘤细胞。该IC 50的表现最好的化合物(值3 - 7)抗HDAC1 38和84μM之间。效力最弱的化合物(2)在250μM时最多只能抑制40%的HDAC1活性。2 – 7的抗增殖活性对BE(2)-C神经母细胞瘤细胞的50μM剂量介于57.0%和88.6%之间。强效HDAC抑制剂曲古抑菌素A之间的结构相似性(TSA,1 ; HDAC1,IC 50 12 nm),而本发明化合物(2 - 7)为高值中的Zn(II)配位羟肟酸头部基团; 并且在选择的化合物(2,5),在4-(二甲基氨基)苯基尾巴。相对于1显着降低了2 – 7的效力,突显了作为HDAC抑制剂药效基团一部分的接头区域的重要性。1 – 7的分子模型使用HDA