A novel series of BPU analogues were synthesized and evaluated for antitumor activity. In particular, BPU sulfur analogues 6
n
and 7
d
were shown to possess up to 10-fold increased potency, when compared to compound 1, against cancer cell lines. 6
n
was more effective than compound 1 in causing apoptosis of MCF-7 cells. When compared to other drugs with a similar mechanism of action, 6
n
retained significant ability to inhibit tubulin assembly, with an IC
50
of 2.1 μM.
一系列的BPU类似物被合成并评估其抗肿瘤活性。特别是,BPU
硫类似物6n和7d相对于化合物1,在癌
细胞系中表现出高达10倍的增强效力。6n比化合物1更有效地引起MCF-7细胞的凋亡。与其他具有类似作用机制的药物相比,6n保留了显著的抑制微管组装的能力,IC50为2.1μM。