高级检索

3-羟基-4-喹诺酮类化合物的设计、合成及其抗增殖活性

Design, synthesis and antiproliferative activity of 3-hydroxy-4-quinolone compounds

  • 摘要: 将二氢杨梅素和喹诺酮抗肿瘤化合物的结构特征拼合,设计了一系列3-羟基-4-喹诺酮类化合物;以3,5-二甲氧基苯胺为原料,经还原氨化、弗克酰基化、微波促进闭环、BBr3催化脱甲基、Mannich反应等步骤制备得到16个目标化合物;采用MTT法测定了化合物对肺肿瘤细胞株A549和NCI-H 460的增殖抑制活性。所合成的16个化合物均未见文献报道,其结构经IR、MS、1H NMR确证;活性测试结果显示,多个化合物对两种细胞株均表现出中等的抗增殖活性,化合物 11b 对NCI-H 46细胞的抑制作用最强。初步构效关系表明:在3-羟基-4-喹诺酮结构的N-1位进入异戊烯基能显著地提高化合物的抗肿瘤活性。

     

    Abstract: A combination of the structural features of dihydromyricetin and quinolone antineoplastic compounds gave rise to 3-hydroxy-4-quinolone motif. Starting from 3, 5-dimethoxyaniline, the target compounds were prepared through a reaction cascade, including reductive amination, Friedel-Crafts reaction, microwave assisted ring closure, BBr3 catalyzed demethylation and Mannich reaction. Sixteen novel compounds were synthesized, and their structures were confirmed by IR, MS and 1H NMR. The antiproliferative activities of the compounds against A549 and NCI-H 460 cells were tested in MTT assay. Several compounds exhibited moderate antiproliferative activities against both cell lines, of which, compound 11b displayed the most robust inhibition towards NCI-H 460. Preliminary structural-activity relationships indicated that introduction of isopentenyl into the N-1 position of 3-hydroxy-4-quinolone motif would significantly improve the potency of the compounds.

     

/

返回文章
返回